Examples with solutions for Division of Fractions: Simple division

Exercise #1

Solve the following exercise:

14:12=? \frac{1}{4}:\frac{1}{2}=\text{?}

Video Solution

Step-by-Step Solution

When we approach solving such questions, we need to know the rule of dividing fractions,

When we need to divide a fraction by a fraction, we use the method of multiplying by the reciprocal.

This means we flip the numerator and denominator of the second fraction, and then perform fraction multiplication.

Instead of:

1/4 : 1/2 =

We get:

1/4 * 2/1 =

We'll remember that in fraction multiplication we multiply numerator by numerator and denominator by denominator

1*2 / 4*1 =
2/4 =

We'll reduce the fraction and get:

1/2

Answer

12 \frac{1}{2}

Exercise #2

Complete the following exercise:

19:13=? \frac{1}{9}:\frac{1}{3}=\text{?}

Video Solution

Step-by-Step Solution

To solve the division of the fractions 19 \frac{1}{9} and 13 \frac{1}{3} , we'll employ the method of "invert and multiply":

  • Step 1: Identify the reciprocal of the divisor. The divisor is 13 \frac{1}{3} , and its reciprocal is 31 \frac{3}{1} .
  • Step 2: Convert the division into a multiplication. Therefore, 19÷13 \frac{1}{9} \div \frac{1}{3} becomes 19×31 \frac{1}{9} \times \frac{3}{1} .
  • Step 3: Carry out the multiplication of the two fractions.
    19×31=1×39×1=39\frac{1}{9} \times \frac{3}{1} = \frac{1 \times 3}{9 \times 1} = \frac{3}{9}.
  • Step 4: Simplify the resulting fraction.
    39\frac{3}{9} simplifies to 13 \frac{1}{3} by dividing both the numerator and the denominator by their greatest common divisor, which is 3.

Therefore, the solution to the problem 19÷13 \frac{1}{9} \div \frac{1}{3} is 13 \frac{1}{3} .

Answer

13 \frac{1}{3}

Exercise #3

Complete the following exercise:

89:23=? \frac{8}{9}:\frac{2}{3}=\text{?}

Video Solution

Step-by-Step Solution

To solve the fraction division 89÷23 \frac{8}{9} \div \frac{2}{3} , follow these steps:

  • Step 1: Identify the given fractions 89 \frac{8}{9} and 23 \frac{2}{3} .
  • Step 2: Find the reciprocal of the second fraction. The reciprocal of 23 \frac{2}{3} is 32 \frac{3}{2} .
  • Step 3: Multiply the first fraction by the reciprocal of the second fraction: 89×32 \frac{8}{9} \times \frac{3}{2} .
  • Step 4: Perform the multiplication: multiply the numerators together and the denominators together.

Let's compute the multiplication:

89×32=8×39×2=2418 \frac{8}{9} \times \frac{3}{2} = \frac{8 \times 3}{9 \times 2} = \frac{24}{18}

Step 5: Simplify the resulting fraction 2418 \frac{24}{18} .

To simplify, find the greatest common divisor (GCD) of 24 and 18, which is 6. Divide both the numerator and the denominator by 6:

2418=24÷618÷6=43 \frac{24}{18} = \frac{24 \div 6}{18 \div 6} = \frac{4}{3}

Step 6: If necessary, convert the improper fraction to a mixed number.

Since 43 \frac{4}{3} is an improper fraction, it can be converted to a mixed number:

43=113 \frac{4}{3} = 1 \frac{1}{3}

Therefore, the solution to the problem 89:23 \frac{8}{9} : \frac{2}{3} is 113 1 \frac{1}{3} .

Answer

113 1\frac{1}{3}

Exercise #4

Complete the following exercise:

34:12=? \frac{3}{4}:\frac{1}{2}=\text{?}

Video Solution

Step-by-Step Solution

To solve this problem, we'll break it into these manageable steps:

  • Step 1: Identify the fractions:
    34 \frac{3}{4} and 12 \frac{1}{2} .
  • Step 2: Find the reciprocal of the second fraction:
    • The reciprocal of 12 \frac{1}{2} is 21 \frac{2}{1} .
  • Step 3: Change the division into multiplication:
    • 34÷12 \frac{3}{4} \div \frac{1}{2} becomes 34×21 \frac{3}{4} \times \frac{2}{1} .
  • Step 4: Multiply the numerators and the denominators:
    • Numerator: 3×2=6 3 \times 2 = 6
    • Denominator: 4×1=4 4 \times 1 = 4
    • So, 34×21=64 \frac{3}{4} \times \frac{2}{1} = \frac{6}{4} .
  • Step 5: Simplify the fraction:
    • 64=32 \frac{6}{4} = \frac{3}{2} , since dividing numerator and denominator by 2 gives 32 \frac{3}{2} .
  • Step 6: Convert the fraction to a mixed number:
    • 32 \frac{3}{2} can be written as the mixed number 112 1\frac{1}{2} .

Therefore, the result of the division is 112 1\frac{1}{2} .

Answer

112 1\frac{1}{2}

Exercise #5

Complete the following exercise:

16:13=? \frac{1}{6}:\frac{1}{3}=\text{?}

Video Solution

Step-by-Step Solution

To solve the division of fractions problem 16÷13\frac{1}{6} \div \frac{1}{3}, we'll apply the concept of multiplying by the reciprocal.

  • Step 1: Identify the reciprocal of the second fraction. The reciprocal of 13\frac{1}{3} is 31\frac{3}{1}.
  • Step 2: Multiply the first fraction by this reciprocal. Therefore, calculate 16×31\frac{1}{6} \times \frac{3}{1}.
  • Step 3: Perform the multiplication. Multiply the numerators: 1×3=31 \times 3 = 3. Multiply the denominators: 6×1=66 \times 1 = 6.
  • Step 4: Simplify the resulting fraction. The fraction 36\frac{3}{6} simplifies to 12\frac{1}{2} because both the numerator and denominator can be divided by 3.

Therefore, the solution to the problem is 12\frac{1}{2}.

Answer

12 \frac{1}{2}

Exercise #6

Solve the following exercise:

24:22=? \frac{2}{4}:\frac{2}{2}=\text{?}

Video Solution

Step-by-Step Solution

To solve the division of fractions 24:22 \frac{2}{4} : \frac{2}{2} , follow these steps:

  • Step 1: Identify the fractions — the first fraction is 24 \frac{2}{4} , and the second fraction is 22 \frac{2}{2} .
  • Step 2: Find the reciprocal of the second fraction. The reciprocal of 22\frac{2}{2} is 22\frac{2}{2}, as it simplifies to 1.
  • Step 3: Multiply the first fraction by the reciprocal of the second fraction:

24×22=2×24×2=48 \frac{2}{4} \times \frac{2}{2} = \frac{2 \times 2}{4 \times 2} = \frac{4}{8}

Step 4: Simplify the resulting fraction 48\frac{4}{8}. Since the greatest common divisor of 4 and 8 is 4, divide both numerator and denominator by 4:

48=4÷48÷4=12 \frac{4}{8} = \frac{4 \div 4}{8 \div 4} = \frac{1}{2}

Therefore, the solution to the problem is 12\frac{1}{2}.

Answer

12 \frac{1}{2}

Exercise #7

Solve the following exercise:

412:24=? \frac{4}{12}:\frac{2}{4}=\text{?}

Video Solution

Step-by-Step Solution

To solve the division problem 412:24 \frac{4}{12}:\frac{2}{4} , we will follow these steps:

  • Step 1: Identify the fractions involved: 412 \frac{4}{12} and 24 \frac{2}{4} .
  • Step 2: Convert the division into multiplication by the reciprocal of the divisor. The reciprocal of 24 \frac{2}{4} is 42 \frac{4}{2} .
  • Step 3: Multiply the first fraction by this reciprocal:

412×42=4×412×2 \frac{4}{12} \times \frac{4}{2} = \frac{4 \times 4}{12 \times 2}

=1624 = \frac{16}{24}

  • Step 4: Simplify the resulting fraction. The greatest common divisor of 16 and 24 is 8.

16÷824÷8=23 \frac{16 \div 8}{24 \div 8} = \frac{2}{3}

Thus, the solution to the problem is 23 \frac{2}{3} .

Answer

23 \frac{2}{3}

Exercise #8

Complete the following exercise:

12:12=? \frac{1}{2}:\frac{1}{2}=\text{?}

Video Solution

Step-by-Step Solution

To solve the division of two fractions 12÷12 \frac{1}{2} \div \frac{1}{2} , we follow these steps:

  • Step 1: Recognize that dividing by a fraction is equivalent to multiplying by its reciprocal. In this case, we replace division with multiplication by flipping the second fraction.
  • Step 2: Thus, 12÷12 \frac{1}{2} \div \frac{1}{2} becomes 12×21 \frac{1}{2} \times \frac{2}{1} .
  • Step 3: Perform the multiplication: Multiply the numerators and the denominators.
    Numerator: 1×2=2 1 \times 2 = 2
    Denominator: 2×1=2 2 \times 1 = 2
  • Step 4: Simplify the result: The fraction 22\frac{2}{2} simplifies to 1.

Thus, the result of the division 12÷12 \frac{1}{2} \div \frac{1}{2} is 1 1 .

Answer

1 1

Exercise #9

Solve the following exercise:

610:25=? \frac{6}{10}:\frac{2}{5}=\text{?}

Video Solution

Step-by-Step Solution

To solve the division 610÷25 \frac{6}{10} \div \frac{2}{5} , we use the method of multiplying by the reciprocal of the divisor.

First, identify the reciprocal of the divisor 25 \frac{2}{5} . The reciprocal is obtained by swapping the numerator and denominator, resulting in 52 \frac{5}{2} .

Next, replace the division operation with multiplication by the reciprocal:

610×52 \frac{6}{10} \times \frac{5}{2} .

Now, perform the multiplication of the fractions by multiplying numerator by numerator and denominator by denominator:

6×510×2=3020 \frac{6 \times 5}{10 \times 2} = \frac{30}{20} .

Simplify the fraction 3020 \frac{30}{20} by finding the greatest common divisor. Both 30 and 20 can be divided by 10:

30÷1020÷10=32 \frac{30 \div 10}{20 \div 10} = \frac{3}{2} .

The simplified fraction 32 \frac{3}{2} can also be expressed as a mixed number:

112 1\frac{1}{2} .

Therefore, the solution to the problem 610÷25 \frac{6}{10} \div \frac{2}{5} is 112 1\frac{1}{2} , aligning with choice 1.

Answer

112 1\frac{1}{2}

Exercise #10

Solve the following:

89:19= \frac{8}{9}:\frac{1}{9}=

Step-by-Step Solution

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

  • Step 1: Identify the given fractions and the operation.
  • Step 2: Take the reciprocal of the second fraction.
  • Step 3: Multiply the first fraction by this reciprocal.
  • Step 4: Simplify the resulting fraction.

Now, let's work through each step:
Step 1: We are given 89\frac{8}{9} and need to divide it by 19\frac{1}{9}.
Step 2: Find the reciprocal of 19\frac{1}{9}, which is 91\frac{9}{1}.
Step 3: Multiply 89\frac{8}{9} by 91\frac{9}{1}:

89×91=8×99×1=729 \frac{8}{9} \times \frac{9}{1} = \frac{8 \times 9}{9 \times 1} = \frac{72}{9}

Step 4: Simplify 729\frac{72}{9} by dividing both the numerator and denominator by 9:

729=8 \frac{72}{9} = 8

Therefore, the solution to the problem is 8 8 .

Answer

8 8

Exercise #11

Solve the following:

34:38= \frac{3}{4}:\frac{3}{8}=

Step-by-Step Solution

To solve this problem, we'll perform the division of two fractions 34 \frac{3}{4} and 38 \frac{3}{8} using the reciprocal method.

  • Step 1: Identify the reciprocal of the divisor.
  • Step 2: Multiply the dividend by the reciprocal of the divisor.
  • Step 3: Simplify the result to get the final answer.

Let's work through each step:

Step 1: The problem asks us to divide 34 \frac{3}{4} by 38 \frac{3}{8} . The reciprocal of 38 \frac{3}{8} is 83 \frac{8}{3} .

Step 2: Multiply 34 \frac{3}{4} by 83 \frac{8}{3} .

34×83=3×84×3=2412 \frac{3}{4} \times \frac{8}{3} = \frac{3 \times 8}{4 \times 3} = \frac{24}{12}

Step 3: Simplify the fraction 2412 \frac{24}{12} .

2412=2 \frac{24}{12} = 2

Therefore, the solution to the problem is 2 2 .

Answer

2 2

Exercise #12

3434=? \frac{\frac{3}{4}}{\frac{3}{4}}=\text{?}

Video Solution

Step-by-Step Solution

We will use the formula:

aa=1 \frac{a}{a}=1

Therefore the answer is 1

Answer

1 1

Exercise #13

Solve the following exercise:

84:42=? \frac{8}{4}:\frac{4}{2}=\text{?}

Video Solution

Answer

1 1