Examples with solutions for Addition of Fractions: More than two fractions

Exercise #1

25+16+430= \frac{2}{5}+\frac{1}{6}+\frac{4}{30}=

Video Solution

Step-by-Step Solution

To solve this problem, we'll add the fractions 25 \frac{2}{5} , 16 \frac{1}{6} , and 430 \frac{4}{30} . Here's the step-by-step solution:

Step 1: Find a common denominator.

The denominators are 5, 6, and 30. The least common multiple (LCM) of these numbers is 30.

Step 2: Convert each fraction to have the common denominator of 30.

  • 25 \frac{2}{5} is converted by multiplying both the numerator and the denominator by 6: 2×65×6=1230 \frac{2 \times 6}{5 \times 6} = \frac{12}{30}
  • 16 \frac{1}{6} is converted by multiplying both the numerator and the denominator by 5: 1×56×5=530 \frac{1 \times 5}{6 \times 5} = \frac{5}{30}
  • 430 \frac{4}{30} already has the denominator of 30, so it remains 430\frac{4}{30}.

Step 3: Add the converted fractions.

Now, add the numerators while keeping the common denominator: 1230+530+430=12+5+430=2130\frac{12}{30} + \frac{5}{30} + \frac{4}{30} = \frac{12 + 5 + 4}{30} = \frac{21}{30}

Therefore, the sum of the fractions is 2130\frac{21}{30}.

From the provided answer choices, the correct answer is choice 2: 2130\frac{21}{30}.

Answer

2130 \frac{21}{30}

Exercise #2

12+24+36= \frac{1}{2}+\frac{2}{4}+\frac{3}{6}=

Video Solution

Step-by-Step Solution

To solve this problem, we will simplify and add the fractions 12+24+36 \frac{1}{2} + \frac{2}{4} + \frac{3}{6} step-by-step:

  • Step 1: Simplify fractions where possible.
    24 \frac{2}{4} simplifies to 12 \frac{1}{2} because the numerator and denominator can both be divided by 2.
    Similarly, 36 \frac{3}{6} simplifies to 12 \frac{1}{2} because both the numerator and denominator are divisible by 3.
  • Step 2: Add the simplified fractions.
    The equation becomes 12+12+12 \frac{1}{2} + \frac{1}{2} + \frac{1}{2} .
  • Step 3: Since all fractions now have the same denominator, they can be added directly:
    Add the numerators: 1+1+1=31 + 1 + 1 = 3 and keep the denominator the same: 2.
    This gives us 32 \frac{3}{2} .

Therefore, the solution to the problem is 32 \frac{3}{2} .

Answer

32 \frac{3}{2}

Exercise #3

310+15+46= \frac{3}{10}+\frac{1}{5}+\frac{4}{6}=

Video Solution

Step-by-Step Solution

To solve the problem of adding the fractions 310+15+46 \frac{3}{10}+\frac{1}{5}+\frac{4}{6} , we follow these steps:

  • Find the common denominator: The denominators are 10, 5, and 6. The least common multiple (LCM) of these numbers is 30.
  • Convert each fraction to have the denominator 30:
    - 310=3×310×3=930 \frac{3}{10} = \frac{3 \times 3}{10 \times 3} = \frac{9}{30}
    - 15=1×65×6=630 \frac{1}{5} = \frac{1 \times 6}{5 \times 6} = \frac{6}{30}
    - 46=4×56×5=2030 \frac{4}{6} = \frac{4 \times 5}{6 \times 5} = \frac{20}{30}
  • Add the converted fractions together:
    - 930+630+2030=9+6+2030=3530 \frac{9}{30} + \frac{6}{30} + \frac{20}{30} = \frac{9 + 6 + 20}{30} = \frac{35}{30}
  • Simplify the fraction 3530 \frac{35}{30} :
    - The greatest common divisor (GCD) of 35 and 30 is 5. Thus, 3530=35÷530÷5=76 \frac{35}{30} = \frac{35 \div 5}{30 \div 5} = \frac{7}{6} .

Therefore, the solution to the problem is 76 \frac{7}{6} .

Answer

76 \frac{7}{6}

Exercise #4

12+34+68= \frac{1}{2}+\frac{3}{4}+\frac{6}{8}=

Video Solution

Step-by-Step Solution

To solve this problem, we will add the fractions 12 \frac{1}{2} , 34 \frac{3}{4} , and 68 \frac{6}{8} by first converting each to have a common denominator:

Step 1: Find the Least Common Denominator (LCD). The denominators are 22, 44, and 88. The LCM of these numbers is 88.

Step 2: Rewrite each fraction with the denominator of 88.

  • 12=1×42×4=48 \frac{1}{2} = \frac{1 \times 4}{2 \times 4} = \frac{4}{8}
  • 34=3×24×2=68 \frac{3}{4} = \frac{3 \times 2}{4 \times 2} = \frac{6}{8}
  • 68 \frac{6}{8} is already expressed with a denominator of 88.

Step 3: Add the fractions:

48+68+68=4+6+68=168 \frac{4}{8} + \frac{6}{8} + \frac{6}{8} = \frac{4 + 6 + 6}{8} = \frac{16}{8}

Step 4: Simplify the fraction:

168=2 \frac{16}{8} = 2

Therefore, the sum of the fractions 12+34+68=2 \frac{1}{2} + \frac{3}{4} + \frac{6}{8} = 2 .

Answer

2 2

Exercise #5

35+13+215= \frac{3}{5}+\frac{1}{3}+\frac{2}{15}=

Video Solution

Step-by-Step Solution

To solve this problem, we'll follow these steps:

  • Step 1: Find the least common multiple (LCM) of the denominators: 5, 3, and 15.
  • Step 2: Convert each fraction to an equivalent fraction with the LCM as the common denominator.
  • Step 3: Add the numerators of the converted fractions.
  • Step 4: Simplify the resulting fraction if necessary.

Now, let's work through each step:

Step 1: The denominators are 5, 3, and 15. The LCM of these numbers is 15.

Step 2: Convert each fraction:

  • 35=3×35×3=915 \frac{3}{5} = \frac{3 \times 3}{5 \times 3} = \frac{9}{15}
  • 13=1×53×5=515 \frac{1}{3} = \frac{1 \times 5}{3 \times 5} = \frac{5}{15}
  • 215=215 \frac{2}{15} = \frac{2}{15}

Step 3: Add the numerators of the converted fractions:

915+515+215=9+5+215=1615 \frac{9}{15} + \frac{5}{15} + \frac{2}{15} = \frac{9 + 5 + 2}{15} = \frac{16}{15}

Step 4: The fraction 1615 \frac{16}{15} is already in simplest form.

Therefore, the solution to the problem is 1615 \frac{16}{15} .

Answer

1615 \frac{16}{15}

Exercise #6

Solve the following exercise:

412+13+16=? \frac{4}{12}+\frac{1}{3}+\frac{1}{6}=\text{?}

Video Solution

Step-by-Step Solution

To solve the problem, we start by finding the least common denominator (LCD) for the fractions 412 \frac{4}{12} , 13 \frac{1}{3} , and 16 \frac{1}{6} .

The denominators are 12, 3, and 6. We need to find the smallest number that is a multiple of each of these numbers. The LCD of 12, 3, and 6 is 12.

Next, we convert each fraction to have this common denominator:

  • 412 \frac{4}{12} already has 12 as the denominator.
  • 13 \frac{1}{3} can be converted to have 12 as the denominator by multiplying both the numerator and the denominator by 4: 13=1×43×4=412\frac{1}{3} = \frac{1 \times 4}{3 \times 4} = \frac{4}{12}.
  • 16 \frac{1}{6} can be converted to have 12 as the denominator by multiplying both the numerator and the denominator by 2: 16=1×26×2=212\frac{1}{6} = \frac{1 \times 2}{6 \times 2} = \frac{2}{12}.

Now, we simply add these fractions:

412+412+212=4+4+212=1012 \frac{4}{12} + \frac{4}{12} + \frac{2}{12} = \frac{4 + 4 + 2}{12} = \frac{10}{12} .

Therefore, the solution to the problem is 1012 \frac{10}{12} .

Answer

1012 \frac{10}{12}

Exercise #7

Solve the following exercise:

15+310+25=? \frac{1}{5}+\frac{3}{10}+\frac{2}{5}=\text{?}

Video Solution

Step-by-Step Solution

To solve this problem, we need to add the fractions 15\frac{1}{5}, 310\frac{3}{10}, and 25\frac{2}{5}.

First, we need to find a common denominator for all the fractions. The denominators we have are 5, 10, and 5. The least common multiple (LCM) of these numbers is 10.

Let's convert each fraction to have a denominator of 10:

  • 15\frac{1}{5} can be converted to: 1×25×2=210\frac{1 \times 2}{5 \times 2} = \frac{2}{10}
  • 310\frac{3}{10} is already with a denominator of 10, so it remains: 310\frac{3}{10}
  • 25\frac{2}{5} can be converted to: 2×25×2=410\frac{2 \times 2}{5 \times 2} = \frac{4}{10}

Now we can add the fractions:

210+310+410=2+3+410=910\frac{2}{10} + \frac{3}{10} + \frac{4}{10} = \frac{2 + 3 + 4}{10} = \frac{9}{10}

Therefore, the sum of the fractions is 910\frac{9}{10}.

So, the solution to the problem is 910\frac{9}{10}.

Answer

910 \frac{9}{10}

Exercise #8

Solve the following exercise:

16+13+212=? \frac{1}{6}+\frac{1}{3}+\frac{2}{12}=\text{?}

Video Solution

Step-by-Step Solution

We will add the fractions 16 \frac{1}{6} , 13 \frac{1}{3} , and 212 \frac{2}{12} by first finding the common denominator.

The least common denominator (LCD) of the denominators 6, 3, and 12 is 12.

Let's convert each fraction to have this common denominator:

  • Convert 16 \frac{1}{6} : Multiply both the numerator and the denominator by 2: 1262=212 \frac{1 \cdot 2}{6 \cdot 2} = \frac{2}{12} .
  • Convert 13 \frac{1}{3} : Multiply both the numerator and the denominator by 4: 1434=412 \frac{1 \cdot 4}{3 \cdot 4} = \frac{4}{12} .
  • 212 \frac{2}{12} already has the denominator 12.

Now add the fractions:

212+412+212=2+4+212=812 \frac{2}{12} + \frac{4}{12} + \frac{2}{12} = \frac{2 + 4 + 2}{12} = \frac{8}{12} .

The fraction 812 \frac{8}{12} can be simplified, but since the problem specifies to provide the answer in this form, we leave it as is.

Therefore, the solution to the problem is 812 \frac{8}{12} .

Answer

812 \frac{8}{12}

Exercise #9

Solve the following exercise:

12+18+14=? \frac{1}{2}+\frac{1}{8}+\frac{1}{4}=\text{?}

Video Solution

Step-by-Step Solution

To solve this problem, we'll follow these steps:

  • Step 1: Find the least common denominator of 2, 8, and 4.
  • Step 2: Convert each fraction to have the common denominator.
  • Step 3: Perform the addition of the adjusted fractions.
  • Step 4: Simplify the result if needed.

Now, let's work through each step:
Step 1: The denominators are 2, 8, and 4. The least common denominator (LCD) of these numbers is 8.
Step 2: Convert each fraction:
12=1×42×4=48\frac{1}{2} = \frac{1 \times 4}{2 \times 4} = \frac{4}{8}
18=18\frac{1}{8} = \frac{1}{8} (already in the desired form)
14=1×24×2=28\frac{1}{4} = \frac{1 \times 2}{4 \times 2} = \frac{2}{8}
Step 3: Add the fractions:
48+18+28=4+1+28=78\frac{4}{8} + \frac{1}{8} + \frac{2}{8} = \frac{4 + 1 + 2}{8} = \frac{7}{8}
Step 4: The fraction 78\frac{7}{8} is already in its simplest form.

Therefore, the solution to the problem is 78\frac{7}{8}.

Answer

78 \frac{7}{8}

Exercise #10

Solve the following exercise:

15+315+13=? \frac{1}{5}+\frac{3}{15}+\frac{1}{3}=\text{?}

Video Solution

Step-by-Step Solution

To solve this problem, let's proceed with the following steps:

  • Step 1: Identify the common denominator for the fractions 15\frac{1}{5}, 315\frac{3}{15}, and 13\frac{1}{3}. The denominators are 5, 15, and 3. The LCM of these denominators is 15.
  • Step 2: Convert each fraction to an equivalent fraction with 15 as the denominator.
    • 15\frac{1}{5} becomes 1×35×3=315\frac{1 \times 3}{5 \times 3} = \frac{3}{15}.
    • 315\frac{3}{15} already has a denominator of 15, so it remains 315\frac{3}{15}.
    • 13\frac{1}{3} becomes 1×53×5=515\frac{1 \times 5}{3 \times 5} = \frac{5}{15}.
  • Step 3: Add the equivalent fractions: 315+315+515\frac{3}{15} + \frac{3}{15} + \frac{5}{15}.
    • Add the numerators: 3+3+5=113 + 3 + 5 = 11.
    • The common denominator is 15, so the result is 1115\frac{11}{15}.
  • Step 4: Simplify the fraction if necessary. In this case, 1115\frac{11}{15} is already in its simplest form as 11 and 15 have no common factors other than 1.

Therefore, the solution to the problem is 1115 \frac{11}{15} .

Answer

1115 \frac{11}{15}

Exercise #11

Solve the following exercise:

12+16+312=? \frac{1}{2}+\frac{1}{6}+\frac{3}{12}=\text{?}

Video Solution

Step-by-Step Solution

To solve the given problem, let's follow these steps:

  • Step 1: Find the Least Common Denominator (LCD)
    The denominators are 2, 6, and 12. The least common multiple (LCM) of these numbers is 12.
  • Step 2: Convert each fraction to have the common denominator of 12
    Here is how to convert each fraction:
    • 12\frac{1}{2} becomes 1×62×6=612\frac{1 \times 6}{2 \times 6} = \frac{6}{12}
    • 16\frac{1}{6} becomes 1×26×2=212\frac{1 \times 2}{6 \times 2} = \frac{2}{12}
    • 312\frac{3}{12} is already with denominator 12, so it remains 312\frac{3}{12}.
  • Step 3: Add the fractions
    Now add the equivalent fractions: 612+212+312=6+2+312=1112\frac{6}{12} + \frac{2}{12} + \frac{3}{12} = \frac{6 + 2 + 3}{12} = \frac{11}{12}.

Therefore, the solution to the problem is 1112\frac{11}{12}.

Answer

1112 \frac{11}{12}

Exercise #12

Solve the following exercise:

310+15+410=? \frac{3}{10}+\frac{1}{5}+\frac{4}{10}=\text{?}

Video Solution

Step-by-Step Solution

When we have a fraction addition exercise with more than one fraction, we make sure all the denominators of the fractions are identical.

Let's find the common denominator of the fractions' denominators: 10 10 and 5 5

The common denominator is 10 10 .

Now we'll multiply both numerator and denominator of the fraction 15 \frac{1}{5} by 2 2 and create a fraction addition exercise where all denominators are 10 10 :

310+1×25×2+410=310+210+410 \frac{3}{10}+\frac{1\times2}{5\times2}+\frac{4}{10}=\frac{3}{10}+\frac{2}{10}+\frac{4}{10}

Finally, we'll add all the numerators of the fractions:

310+210+410=3+2+410=910 \frac{3}{10}+\frac{2}{10}+\frac{4}{10}=\frac{3+2+4}{10}=\frac{9}{10}

Answer

910 \frac{9}{10}

Exercise #13

Solve the following exercise:

26+14+212=? \frac{2}{6}+\frac{1}{4}+\frac{2}{12}=\text{?}

Video Solution

Step-by-Step Solution

To solve this problem, we will follow these steps:

  • Step 1: Find the least common multiple (LCM) of the denominators.
  • Step 2: Convert each fraction to an equivalent fraction with the common denominator.
  • Step 3: Add the converted fractions.
  • Step 4: Simplify the resulting fraction if possible.

Step 1: The denominators are 6, 4, and 12. The least common multiple of these numbers is 12.

Step 2: Convert each fraction to have the common denominator of 12.
- Convert 26 \frac{2}{6} to have the denominator 12: 26=412 \frac{2}{6} = \frac{4}{12} by multiplying numerator and denominator by 2.
- Convert 14 \frac{1}{4} to have the denominator 12: 14=312 \frac{1}{4} = \frac{3}{12} by multiplying numerator and denominator by 3.
- 212 \frac{2}{12} already has the denominator 12, so it remains unchanged: 212 \frac{2}{12} .

Step 3: Add the numerators of the converted fractions:
412+312+212=4+3+212=912 \frac{4}{12} + \frac{3}{12} + \frac{2}{12} = \frac{4 + 3 + 2}{12} = \frac{9}{12} .

Step 4: Simplify the fraction if possible. Here, 912 \frac{9}{12} can be simplified by dividing both numerator and denominator by their greatest common divisor, which is 3:
912=34 \frac{9}{12} = \frac{3}{4} .

Therefore, the solution to the problem is 912 \frac{9}{12} .

Answer

912 \frac{9}{12}

Exercise #14

56x+78x+24x= \frac{5}{6}x+\frac{7}{8}x+\frac{2}{4}x=

Video Solution

Step-by-Step Solution

First, let's find a common denominator for 4, 8, and 6: it's 24.

Now, we'll multiply each fraction by the appropriate number to get:

5×46×4x+7×38×3x+2×64×6x= \frac{5\times4}{6\times4}x+\frac{7\times3}{8\times3}x+\frac{2\times6}{4\times6}x=

Let's solve the multiplication exercises in the numerator and denominator:

2024x+2124x+1224x= \frac{20}{24}x+\frac{21}{24}x+\frac{12}{24}x=

We'll connect all the numerators:

20+21+1224x=41+1224x=5324x \frac{20+21+12}{24}x=\frac{41+12}{24}x=\frac{53}{24}x

Let's break down the numerator into a smaller addition exercise:

48+524=4824+524=2+524=2524x \frac{48+5}{24}=\frac{48}{24}+\frac{5}{24}=2+\frac{5}{24}=2\frac{5}{24}x

Answer

2524x 2\frac{5}{24}x

Exercise #15

1228+14= \frac{1}{2}-\frac{2}{8}+\frac{1}{4}=

Step-by-Step Solution

To solve the expression 1228+14 \frac{1}{2} - \frac{2}{8} + \frac{1}{4} , we must first find a common denominator for the fractions involved.

Step 1: Identify a common denominator. The denominators are 2, 8, and 4. The smallest common multiple of these numbers is 8.

Step 2: Convert each fraction to have the common denominator of 8.

  • The fraction 12 \frac{1}{2} can be written as 48 \frac{4}{8} because 1×4=4 1 \times 4 = 4 and 2×4=8 2 \times 4 = 8 .
  • The fraction 28 \frac{2}{8} is already expressed with 8 as the denominator.
  • The fraction 14 \frac{1}{4} can be written as 28 \frac{2}{8} because 1×2=2 1 \times 2 = 2 and 4×2=8 4 \times 2 = 8 .

Step 3: Substitute these equivalent fractions back into the original expression:

4828+28 \frac{4}{8} - \frac{2}{8} + \frac{2}{8}

Step 4: Perform the subtraction and addition following the order of operations:

  • Subtract: 4828=28 \frac{4}{8} - \frac{2}{8} = \frac{2}{8}
  • Add: 28+28=48 \frac{2}{8} + \frac{2}{8} = \frac{4}{8}

Step 5: Simplify the result:

48 \frac{4}{8} simplifies to 12 \frac{1}{2} by dividing the numerator and denominator by 4.

Therefore, the value of the expression is 12 \frac{1}{2} .

Answer

12 \frac{1}{2}

Exercise #16

23+21545= \frac{2}{3}+\frac{2}{15}-\frac{4}{5}=

Video Solution

Step-by-Step Solution

Let's try to find the lowest common denominator between 3, 15, and 5

To find the lowest common denominator, we need to find a number that is divisible by 3, 15, and 5

In this case, the common denominator is 15

Now we'll multiply each fraction by the appropriate number to reach the denominator 15

We'll multiply the first fraction by 5

We'll multiply the second fraction by 1

We'll multiply the third fraction by 3

2×53×5+2×115×14×35×3=1015+2151215 \frac{2\times5}{3\times5}+\frac{2\times1}{15\times1}-\frac{4\times3}{5\times3}=\frac{10}{15}+\frac{2}{15}-\frac{12}{15}

Now we'll add and then subtract:

10+21215=121215=015 \frac{10+2-12}{15}=\frac{12-12}{15}=\frac{0}{15}

We'll divide both the numerator and denominator by 0 and get:

015=0 \frac{0}{15}=0

Answer

0 0

Exercise #17

13+71525= \frac{1}{3}+\frac{7}{15}-\frac{2}{5}=

Video Solution

Step-by-Step Solution

Let's try to find the lowest common denominator between 3, 15, and 5

To find the lowest common denominator, we need to find a number that is divisible by 3, 15, and 5

In this case, the common denominator is 15

Now we'll multiply each fraction by the appropriate number to reach the denominator 15

We'll multiply the first fraction by 5

We'll multiply the second fraction by 1

We'll multiply the third fraction by 3

1×53×5+7×115×12×35×3=515+715615 \frac{1\times5}{3\times5}+\frac{7\times1}{15\times1}-\frac{2\times3}{5\times3}=\frac{5}{15}+\frac{7}{15}-\frac{6}{15}

Now we'll add and then subtract:

5+7615=12615=615 \frac{5+7-6}{15}=\frac{12-6}{15}=\frac{6}{15}

We'll divide both numerator and denominator by 3 and get:

6:315:3=25 \frac{6:3}{15:3}=\frac{2}{5}

Answer

25 \frac{2}{5}

Exercise #18

37+514+13= \frac{3}{7}+\frac{5}{14}+\frac{1}{3}=

Video Solution

Step-by-Step Solution

To solve the problem of adding the fractions 37+514+13 \frac{3}{7} + \frac{5}{14} + \frac{1}{3} , we follow these steps:

  • Step 1: Find the Least Common Denominator (LCD).
    We have denominators 7, 14, and 3. The least common multiple (LCM) of these numbers is 42.
  • Step 2: Convert each fraction to the equivalent fraction with denominator 42.
    • 37 \frac{3}{7} : Multiply both the numerator and the denominator by 6 to get 1842 \frac{18}{42} .
    • 514 \frac{5}{14} : Multiply both the numerator and the denominator by 3 to get 1542 \frac{15}{42} .
    • 13 \frac{1}{3} : Multiply both the numerator and the denominator by 14 to get 1442 \frac{14}{42} .
  • Step 3: Add the fractions.
    Now, we add the numerators of these fractions: 18+15+14=47 18 + 15 + 14 = 47 .
  • Final Result:
    The sum of the fractions is 4742 \frac{47}{42} .

Therefore, the final answer is 4742 \frac{47}{42} .

Answer

4742 \frac{47}{42}

Exercise #19

12+34+25= \frac{1}{2}+\frac{3}{4}+\frac{2}{5}=

Video Solution

Step-by-Step Solution

To solve this problem, we will add the fractions by finding a common denominator:

  • Step 1: Identify the denominators: 2, 4, and 5. Find the least common multiple (LCM) of these denominators.
  • Step 2: The LCM of 2, 4, and 5 is 20. Use this as the common denominator.
  • Step 3: Convert each fraction to have a denominator of 20:
    • Convert 12 \frac{1}{2} to 1020 \frac{10}{20} by multiplying the numerator and denominator by 10.
    • Convert 34 \frac{3}{4} to 1520 \frac{15}{20} by multiplying the numerator and denominator by 5.
    • Convert 25 \frac{2}{5} to 820 \frac{8}{20} by multiplying the numerator and denominator by 4.
  • Step 4: Add the three fractions: 1020+1520+820 \frac{10}{20} + \frac{15}{20} + \frac{8}{20} .
  • Step 5: Add the numerators: 10+15+8=33 10 + 15 + 8 = 33 .
  • Step 6: Write the result as a single fraction: 3320 \frac{33}{20} .
  • Step 7: Check if the fraction can be simplified. Since 33 and 20 have no common factors other than 1, 3320 \frac{33}{20} is in its simplest form.
  • Step 8: Confirm this matches choice (4): 3320 \frac{33}{20} .

Therefore, the solution to the problem is 3320 \frac{33}{20} .

Answer

3320 \frac{33}{20}

Exercise #20

23+14+56+112= \frac{2}{3}+\frac{1}{4}+\frac{5}{6}+\frac{1}{12}=

Video Solution

Step-by-Step Solution

To solve this problem, we'll follow these steps:

  • Step 1: Determine the least common denominator (LCD) for all fractions.
  • Step 2: Convert each fraction to have the LCD as the denominator.
  • Step 3: Add the numerators of the fractions with the common denominator.
  • Step 4: Simplify the resulting fraction if possible.

Now, let’s work through each step:

Step 1: The denominators are 3, 4, 6, and 12. The least common multiple of these numbers is 12. Thus, the LCD is 12.

Step 2: Convert each fraction:
- 23 \frac{2}{3} to an equivalent fraction with a denominator of 12:
Multiply both the numerator and denominator by 4 to get 2×43×4=812 \frac{2 \times 4}{3 \times 4} = \frac{8}{12} .
- 14 \frac{1}{4} to an equivalent fraction with a denominator of 12:
Multiply both the numerator and denominator by 3 to get 1×34×3=312 \frac{1 \times 3}{4 \times 3} = \frac{3}{12} .
- 56 \frac{5}{6} to an equivalent fraction with a denominator of 12:
Multiply both the numerator and denominator by 2 to get 5×26×2=1012 \frac{5 \times 2}{6 \times 2} = \frac{10}{12} .
- 112 \frac{1}{12} is already with the denominator 12, so it remains 112 \frac{1}{12} .

Step 3: Add the numerators of these fractions:
812+312+1012+112=8+3+10+112=2212 \frac{8}{12} + \frac{3}{12} + \frac{10}{12} + \frac{1}{12} = \frac{8 + 3 + 10 + 1}{12} = \frac{22}{12}

Step 4: Simplify the fraction.
Since 22 and 12 share the common divisor 2, we simplify 2212 \frac{22}{12} to 116 \frac{11}{6} . This fraction cannot be simplified further.

Therefore, the solution to the problem is 116 \frac{11}{6} .

Answer

116 \frac{11}{6}