What is 20% of 90?

NOVEMBER 10, 2023

What is the answer to 20% of 90?

The answer to 20% of 90 is 18.

Method 1: Tips

To solve this problem using Method 1, we need to convert the percentage to a fraction.

What is the multiplication formula for 20% of 90?

The multiplication formula for 20% of 90 is:

20% * 90

Follow the steps to figure out the answer.

  1. Convert 20% to a fraction: 20% = 20/100 = 1/5
  2. Multiply the fraction by 90: (1/5) * 90 = 90/5 = 18

Step by step solution to the problem

  1. Convert 20% to a fraction: 20% = 20/100 = 1/5
  2. Multiply the fraction by 90: (1/5) * 90 = 90/5 = 18

Method 2: Tips

To solve this problem using Method 2, we need to convert the percentage to a decimal.

What is the multiplication formula for 20% of 90?

The multiplication formula for 20% of 90 is:

0.20 * 90

Follow the steps to figure out the answer.

  1. Convert 20% to a decimal: 20% = 20/100 = 0.20
  2. Multiply the decimal by 90: 0.20 * 90 = 18

Step by step solution to the problem

  1. Convert 20% to a decimal: 20% = 20/100 = 0.20
  2. Multiply the decimal by 90: 0.20 * 90 = 18

How to convert percentages into fractions?

To convert a percentage into a fraction, follow these steps:

  1. Write the percentage as a fraction with a denominator of 100.
  2. Simplify the fraction if possible.

For example, to convert 20% to a fraction:

  1. Write 20% as 20/100.
  2. Simplify the fraction by dividing both the numerator and denominator by their greatest common divisor, which is 20. The simplified fraction is 1/5.

Therefore, 20% is equivalent to 1/5.

Examples on converting percentages into fractions

  1. Convert 25% to a fraction. Solution: 25% = 25/100 = 1/4

  2. Convert 75% to a fraction. Solution: 75% = 75/100 = 3/4

How to convert a percentage to a decimal?

To convert a percentage to a decimal, divide the percentage by 100.

For example, to convert 20% to a decimal:

20% = 20/100 = 0.20

Therefore, 20% is equivalent to 0.20.

Solved Examples on converting percentage to decimal

  1. Convert 50% to a decimal. Solution: 50% = 50/100 = 0.50

  2. Convert 75% to a decimal. Solution: 75% = 75/100 = 0.75

Question: 20% of 90

The question "20% of 90" is asking for the value obtained when 20% of 90 is calculated. To solve this problem, we can use either Method 1 or Method 2 explained above.

Using Method 1, we convert 20% to a fraction: 20% = 20/100 = 1/5. Then, we multiply the fraction by 90: (1/5) * 90 = 90/5 = 18. Therefore, 20% of 90 is 18.

Using Method 2, we convert 20% to a decimal: 20% = 20/100 = 0.20. Then, we multiply the decimal by 90: 0.20 * 90 = 18. Therefore, 20% of 90 is 18.