# What percent of 12 is 21?

Answer: 175 percent of 12 is 21

## Fastest method for calculating what percent of 12 is 21

Assume the unknown value is 'Y', and 21 of 12 can be written as:

Y = 21 / 12

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

Y = 21 / 12 x 100 / 100 = 175 / 100

Y = 175%

Answer: 175 percent of 12 is 21

If you want to use a calculator, simply enter 21÷12x100 and you will get your answer which is 175

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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% / 12 = Y% / 21

Drop the percentage marks to simplify your calculations: 100 / 12 = Y / 21

Multiply both sides by 21 to isolate Y on the right side of the equation: 21 ( 100 / 12 ) = Y

Computing the left side, we get: 175 = Y

This leaves us with our final answer: 175 percent of 12 is 21