Converting between fractions and percentages and vice versa

In order to convert between fractions and percentages and vice versa, it's important to remember that one percent - 1%=11001\% = \frac{1}{100}.
If you remember this principle, the calculations are simple.

Converting Percentages to Fractions

The first stage -

In the numerator, we write the given percentage number (without the percentage sign)
and in the denominator, we always write the number 100100.

The second stage -

We reduce the fraction that we obtained as much as possible in order to achieve the final answer.

Converting Fractions to Percentages

The first stage -

We expand or reduce the fraction so that the number 100100 appears in its denominator.
We will make sure to perform the expansion/reduction operation on both the numerator and denominator to maintain the value of the fraction.

The second stage -

What we obtained in the numerator will be the percentage and that will be the final answer.

Important note - not every fraction can be converted to percentages (without a calculator) since not every given denominator can be converted to 100100 through expansion or reduction.

Suggested Topics to Practice in Advance

  1. How to Calculate Percentage
  2. How do you calculate the percentage value?
  3. What is a percentage?

Practice Converting Fractions to Percentages and Vice Versa

Examples with solutions for Converting Fractions to Percentages and Vice Versa

Exercise #1

Convert the fraction into a percentage:

2100=? \frac{2}{100}=\text{?}

Video Solution

Step-by-Step Solution

To convert the fraction 2100\frac{2}{100} into a percentage, follow these steps:

  • Step 1: Recognize that to convert a fraction to a percentage, you multiply the fraction by 100.
  • Step 2: Multiply the numerator of the fraction by 100:

2100×100=2 \frac{2}{100} \times 100 = 2

This tells us that 2100\frac{2}{100} is equivalent to 2%.

Therefore, the correct percentage is 2%.

Answer

2%

Exercise #2

Convert the fraction into a percentage:

24100=? \frac{24}{100}=\text{?}

Video Solution

Step-by-Step Solution

To solve this problem, we'll use the conversion method to obtain the percentage representation of the fraction:

  • Step 1: Identify the given fraction 24100 \frac{24}{100} .
  • Step 2: Convert the fraction to a percentage by multiplying it by 100: (24100)×100%\left(\frac{24}{100}\right) \times 100\% .
  • Step 3: Calculate the expression: 24100×100=24\frac{24}{100} \times 100 = 24.
  • Step 4: Append the percentage symbol to the result: 24%24\% .

Thus, the fraction 24100 \frac{24}{100} is equivalent to 24%.

Answer

24%

Exercise #3

Convert the fraction into a percentage:

56100=? \frac{56}{100}=\text{?}

Video Solution

Step-by-Step Solution

To solve this problem, let's convert the given fraction 56100\frac{56}{100} into a percentage using the standard conversion method:

  • Step 1: Recognize that converting a fraction to a percentage involves multiplying the fraction by 100. This is because a percentage is a way of expressing a number as a part out of 100.
  • Step 2: Multiply the fraction by 100 as follows:

56100×100%=56% \frac{56}{100} \times 100\% = 56\%

Thus, when you convert 56100\frac{56}{100} into a percentage, you obtain 56%.

Comparing this with the provided answer options, 56% matches option 4.

Therefore, the correct answer is 56% 56\% .

Answer

56%

Exercise #4

Convert the fraction 135100 \frac{135}{100} For percentages we obtain:

Video Solution

Step-by-Step Solution

To solve this problem, we should first recognize the nature of the fraction 135100\frac{135}{100}. Since the denominator is 100, the fraction directly represents the percentage equivalent of the numerator.

Step-by-step:

  • Step 1: Understand that any fraction a100\frac{a}{100} can be interpreted as a%a\% in percentage form.
  • Step 2: In this instance, 135100\frac{135}{100} directly translates to 135% because the denominator is 100.

Therefore, the fraction 135100\frac{135}{100} is equivalent to 135%.

The correct choice from the options provided is choice 3: 135%.

Therefore, the solution to the problem is 135%.

Answer

135%

Exercise #5

Convert the fraction 157100 \frac{157}{100} For percentages we obtain:

Video Solution

Step-by-Step Solution

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

  • Step 1: Identify the given information: the fraction is 157100 \frac{157}{100} .
  • Step 2: Apply the conversion formula by multiplying the fraction by 100.
  • Step 3: Perform the calculation and check the correct multiple-choice answer.

Now, let's work through each step:
Step 1: The problem provides us with the fraction 157100 \frac{157}{100} .
Step 2: We'll use the formula Percentage=(NumeratorDenominator)×100 \text{Percentage} = \left( \frac{\text{Numerator}}{\text{Denominator}} \right) \times 100 . Plugging in our values, we get:

(157100)×100=157% \left( \frac{157}{100} \right) \times 100 = 157\%

Therefore, the percentage equivalent of the fraction 157100 \frac{157}{100} is 157% 157\% .

The correct answer from the given choices is: Choice 4: 157%

Answer

157%

Exercise #6

Convert the fraction 200100 \frac{200}{100} For percentages we obtain:

Video Solution

Step-by-Step Solution

To solve this problem, let's convert the fraction 200100 \frac{200}{100} to a percentage.

We can perform this conversion using the following steps:

  • Step 1: Recall that to convert a fraction to a percentage, you multiply it by 100. Therefore, the formula to use is:

  • numeratordenominator×100% \frac{\text{numerator}}{\text{denominator}} \times 100\%

Let's apply this formula to our fraction:

200100×100% \frac{200}{100} \times 100\%

Step 2: Simplify the fraction. In this case, 200100\frac{200}{100} simplifies to 22.

Step 3: Multiply the simplified result by 100:

2×100%=200% 2 \times 100\% = 200\%

Therefore, the fraction 200100\frac{200}{100} is equivalent to 200%.

The correct answer is choice 2: 200% 200\% .

Answer

200%

Exercise #7

Convert the fraction 7100 \frac{7}{100} into a percentage.

Video Solution

Step-by-Step Solution

The fraction:

x100 \frac{x}{100} is actually x percent.

Therefore we use the formula:

x100=x% \frac{x}{100}=x\%

7100=7% \frac{7}{100}=7\%

Answer

7%

Exercise #8

Convert the fraction 75100 \frac{75}{100} For percentages we obtain:

Video Solution

Step-by-Step Solution

To solve this problem, follow these steps:

  • Step 1: Identify that the fraction given is 75100 \frac{75}{100} .
  • Step 2: Recognize that a fraction with a denominator of 100 directly gives the percentage represented by its numerator.

Now, let's work through each step:
Step 1: We see that the fraction is 75100 \frac{75}{100} , where 100 is the denominator, which is the standard for percentages.
Step 2: Since percentages are essentially fractions out of 100, the numerator directly translates into the percentage.

Thus, the percentage represented by 75100 \frac{75}{100} is 75%.

Therefore, the solution to the problem is 75%.

Answer

75%

Exercise #9

Write the percentage 118% as a fraction with a denominator of 100.

Video Solution

Step-by-Step Solution

To solve this problem, we'll follow a simple conversion:

  • Step 1: Recognize that a percentage represents a number out of 100. Thus, 118% is equivalent to 118 out of 100.
  • Step 2: Apply the conversion formula: Percentage=Percentage number100 \text{Percentage} = \frac{\text{Percentage number}}{100} .
  • Step 3: Directly convert 118% into a fraction using this formula: 118100\frac{118}{100}.

Since the problem asks for the fraction with a denominator of 100, we have arrived at the correct form.

Therefore, the fraction form of 118% with a denominator of 100 is 118100\frac{118}{100}.

Answer

118100 \frac{118}{100}

Exercise #10

Write the percentage 201% as a fraction with a denominator of 100.

Video Solution

Step-by-Step Solution

We use the formula:

x100=x% \frac{x}{100}=x\%

201100=201% \frac{201}{100}=201\%

Answer

201100 \frac{201}{100}

Exercise #11

Write the percentage 33% as a fraction with a denominator of 100.

Video Solution

Step-by-Step Solution

To solve this problem, we will employ the following straightforward steps:

  • Step 1: Identify the given percentage, which is 33%.
  • Step 2: Use the definition of percentage to convert it into a fraction. A percentage is a fraction out of 100. Therefore, 33% equals 33100\frac{33}{100}.

Therefore, the solution to the problem is 33100 \frac{33}{100} .
Comparing with the given choices, the correct option is .

Answer

33100 \frac{33}{100}

Exercise #12

Write the percentage 54% as a fraction with a denominator of 100.

Video Solution

Step-by-Step Solution

To solve the problem of converting a percentage to a fraction, follow these steps:

  • Step 1: Recognize that the percentage given is 54%.
  • Step 2: Use the conversion principle that any percentage can be written as a fraction with a denominator of 100. Thus, 54% is written as 54100\frac{54}{100}.
  • Step 3: Check if further simplification is needed. In this case, since we were specifically asked for a denominator of 100, no simplification is required.

Therefore, the percentage 54% as a fraction with a denominator of 100 is 54100\frac{54}{100}.

Answer

54100 \frac{54}{100}

Exercise #13

Write the percentage 66% as a fraction with a denominator of 100.

Video Solution

Step-by-Step Solution

To solve the problem of converting 66% into a fraction with a denominator of 100, we follow these simple steps:

  • Step 1: Recognize that the percentage 66% means 66 per 100.
  • Step 2: Write this as a fraction directly as 66100 \frac{66}{100} .

Therefore, the percentage 66% expressed as a fraction with a denominator of 100 is 66100 \frac{66}{100} .

Answer

66100 \frac{66}{100}

Exercise #14

Write the percentage 75% as a fraction with a denominator of 100.

Video Solution

Step-by-Step Solution

To express 75% as a fraction with a denominator of 100, follow these steps:

  • Step 1: Recall that a percentage is a fraction out of 100. This means that 75% represents 75 out of 100.
  • Step 2: Write the percentage as a fraction: Since 75% means 75 per hundred, this directly gives us the fraction 75100\frac{75}{100}.

Upon checking the given choices, the correct answer is 75100\frac{75}{100}, which matches option 4.

Therefore, the solution to the problem is 75100\frac{75}{100}.

Answer

75100 \frac{75}{100}

Exercise #15

Write the percentage 87% as a fraction with a denominator of 100.

Video Solution

Step-by-Step Solution

We use the formula:

x100=x% \frac{x}{100}=x\%

87100=87% \frac{87}{100}=87\%

Answer

87100 \frac{87}{100}

Topics learned in later sections

  1. Estimation