# 18 is what percent of 20?

Answer: 18 is 90 percent of 20

## Fastest method for calculating 18 is what percent of 20

Assume the unknown value is 'Y', and 18 of 20 can be written as:

Y = 18 / 20

By multiplying both numerator and denominator by 100 we will get:

Y = 18 / 20 x 100 / 100 = 90 / 100

Y = 90%

Answer: 18 is 90 percent of 20

If you want to use a calculator, simply enter 18÷20x100 and you will get your answer which is 90

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## Have time and want to learn the details?

Let's solve the equation for Y by first rewriting it as: 100% / 20 = Y% / 18

Drop the percentage marks to simplify your calculations: 100 / 20 = Y / 18

Multiply both sides by 18 to isolate Y on the right side of the equation: 18 ( 100 / 20 ) = Y

Computing the left side, we get: 90 = Y

This leaves us with our final answer: 18 is 90 percent of 20