How do you simplify fractions? Or, how do you reduce fractions?

In most cases, when fractions are introduced to students as a new topic in the classroom, the initial reaction is: "Here's another complex subject we have to deal with." But then, reactions change and fractions are seen as a kind of enjoyable game that is more of a technical challenge. So, what's particularly important about fractions? Understanding their meaning, the division of roles between the numerator and the denominator, and how to reduce them. Is it difficult to reduce fractions? Not really.

So, when will you need to reduce the given fractions?

  • At the time it's required in an exercise/test.
  • In case you want to work with smaller fractions.
new example reduce_fractions

Suggested Topics to Practice in Advance

  1. A fraction as a divisor
  2. Numerator
  3. Denominator
  4. Fractions
  5. Part of a quantity
  6. Remainder of a fraction
  7. Remainders
  8. Placing Fractions on the Number Line
  9. Common denominator

Practice How do you simplify fractions?

Examples with solutions for How do you simplify fractions?

Exercise #1

Simplify the following fraction:

11= \frac{1}{1}=

Video Solution

Step-by-Step Solution

Let's reduce as follows, we'll divide both the numerator and denominator by 1:

1:11:1=11 \frac{1:1}{1:1}=\frac{1}{1}

Answer

11 \frac{1}{1}

Exercise #2

Simplify the following fraction:

124= \frac{12}{4}=

Video Solution

Step-by-Step Solution

Let's reduce as follows, divide the numerator by 4 and the denominator by 4:

12:44:4=31 \frac{12:4}{4:4}=\frac{3}{1}

Answer

31 \frac{3}{1}

Exercise #3

Simplify the following fraction:

128= \frac{12}{8}=

Video Solution

Step-by-Step Solution

Let's simplify as follows, we'll divide both the numerator by 2 and the denominator by 2:

12:28:2=64 \frac{12:2}{8:2}=\frac{6}{4}

Answer

64 \frac{6}{4}

Exercise #4

Simplify the following fraction:

168= \frac{16}{8}=

Video Solution

Step-by-Step Solution

Let's simplify as follows, we'll divide both the numerator by 2 and the denominator by 2:

16:28:2=84 \frac{16:2}{8:2}=\frac{8}{4}

Answer

84 \frac{8}{4}

Exercise #5

Simplify the following fraction:

210= \frac{2}{10}=

Video Solution

Step-by-Step Solution

Let's simplify as follows, we'll divide both the numerator by 2 and the denominator by 2:

2:210:2=15 \frac{2:2}{10:2}=\frac{1}{5}

Answer

15 \frac{1}{5}

Exercise #6

Simplify the following fraction:

416= \frac{4}{16}=

Video Solution

Step-by-Step Solution

We will reduce in the following way, divide the numerator by 4 and the denominator by 4:

4:416:4=14 \frac{4:4}{16:4}=\frac{1}{4}

Answer

14 \frac{1}{4}

Exercise #7

Simplify the following fraction by a factor of 1:

310= \frac{3}{10}=

Video Solution

Step-by-Step Solution

We will reduce in the following way, divide the numerator by 1 and the denominator by 1:

3:110:1=310 \frac{3:1}{10:1}=\frac{3}{10}

Answer

310 \frac{3}{10}

Exercise #8

Simplify the following fraction by a factor of 3:

36= \frac{3}{6}=

Video Solution

Step-by-Step Solution

We will reduce as follows, divide the numerator by 3 and the denominator by 3:

3:36:3=12 \frac{3:3}{6:3}=\frac{1}{2}

Answer

12 \frac{1}{2}

Exercise #9

Simplify the following fraction by a factor of 4:

48= \frac{4}{8}=

Video Solution

Step-by-Step Solution

Let's simplify as follows, we'll divide both the numerator by 4 and the denominator by 4:

4:48:4=12 \frac{4:4}{8:4}=\frac{1}{2}

Answer

12 \frac{1}{2}

Exercise #10

Simplify the following fraction by a factor of 5:

1510= \frac{15}{10}=

Video Solution

Step-by-Step Solution

Let's reduce as follows, we'll divide both the numerator and denominator by 5:

15:510:5=32 \frac{15:5}{10:5}=\frac{3}{2}

Answer

32 \frac{3}{2}

Exercise #11

Enlarge the following fraction by a factor of 11:

89= \frac{8}{9}=

Video Solution

Step-by-Step Solution

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

  • Step 1: Multiply the numerator of the fraction by the enlargement factor.
  • Step 2: Multiply the denominator of the fraction by the enlargement factor.
  • Step 3: Write the new fraction formed after multiplication.

Now, let's work through each step:

Step 1: The numerator of 89 \frac{8}{9} is 8. Multiply 8 by 11:
8×11=88 8 \times 11 = 88 .

Step 2: The denominator of 89 \frac{8}{9} is 9. Multiply 9 by 11:
9×11=99 9 \times 11 = 99 .

Step 3: The enlarged fraction is given by the new numerator and denominator:
8899 \frac{88}{99} .

Therefore, the solution to the problem is 8899 \frac{88}{99} .

Answer

8899 \frac{88}{99}

Exercise #12

Enlarge the following fraction by the factor 3:

215= \frac{2}{15}=

Video Solution

Step-by-Step Solution

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

  • Step 1: Identify the given fraction 215 \frac{2}{15} .
  • Step 2: Multiply both the numerator and the denominator by the factor 3.
  • Step 3: Write the new fraction.

Now, let's work through each step:

Step 1: The given fraction is 215 \frac{2}{15} .

Step 2: We need to enlarge this fraction by a factor of 3.
Multiply the numerator: 2×3=6 2 \times 3 = 6 .
Multiply the denominator: 15×3=45 15 \times 3 = 45 .

Step 3: The enlarged fraction is 645 \frac{6}{45} .

Therefore, the solution to the problem is 645 \frac{6}{45} .

Answer

645 \frac{6}{45}

Exercise #13

Enlarge the following fraction by the factor 4:

13= \frac{1}{3}=

Video Solution

Step-by-Step Solution

To solve the problem of enlarging the fraction 13\frac{1}{3} by a factor of 4, we will follow these steps:

  • Step 1: Identify the given fraction and enlargement factor. The fraction is 13\frac{1}{3} and the factor is 4.
  • Step 2: Multiply both the numerator and denominator of the fraction by the enlargement factor. This means we calculate:

1×43×4=412 \frac{1 \times 4}{3 \times 4} = \frac{4}{12}

Step 3: Check if the fraction can be simplified. Here, 412\frac{4}{12} can be simplified to 13\frac{1}{3}, but since we aim to express it in an "enlarged" form, 412\frac{4}{12} is a correct representation when enlarged by the given factor.

Step 4: Verify against answer choices if applicable. In our list of choices, 412\frac{4}{12} is listed as choice 3, which matches our calculated answer.

Therefore, the solution to the problem is 412\frac{4}{12}.

Answer

412 \frac{4}{12}

Exercise #14

Enlarge the following fraction by the factor 8:

910= \frac{9}{10}=

Video Solution

Step-by-Step Solution

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

  • Step 1: Multiply the numerator by the enlargement factor.
  • Step 2: Multiply the denominator by the enlargement factor.
  • Step 3: Write down the new fraction.

Now, let's work through each step:
Step 1: Multiply the numerator of 910\frac{9}{10}, which is 9, by the factor 8:
9×8=72 9 \times 8 = 72
Step 2: Multiply the denominator of 910\frac{9}{10}, which is 10, by the factor 8:
10×8=80 10 \times 8 = 80
Step 3: The enlarged fraction is 7280\frac{72}{80}.

Therefore, the solution to the problem is that 910\frac{9}{10} enlarged by a factor of 8 is 7280 \frac{72}{80} .

Answer

7280 \frac{72}{80}

Exercise #15

Enlarge the following fraction by the factor 9:

79= \frac{7}{9}=

Video Solution

Step-by-Step Solution

To solve this problem, we need to enlarge the fraction 79\frac{7}{9} by a factor of 9.

First, let's restate the initial fraction:

  • The given fraction is 79\frac{7}{9}.
  • The factor to enlarge by is 9.

Now, we'll apply the enlargement:

  • Multiply the numerator (7) by the factor 9:
    7×9=637 \times 9 = 63.
  • Multiply the denominator (9) by the factor 9:
    9×9=819 \times 9 = 81.

Thus, the enlarged fraction is 6381\frac{63}{81}.

Comparing this result with the given multiple choice options confirms that our answer is option 3, 6381\frac{63}{81}.

Therefore, the enlarged fraction is 6381\frac{63}{81}.

Answer

6381 \frac{63}{81}

Topics learned in later sections

  1. Simplification and Expansion of Simple Fractions