# Question: What percent of 140 is 21

## Step by step method for calculating what percent of 140 is 21

We already have our first value 140 and the second value 21. Let's assume the unknown value is Y which answer we will find out.

As we have all the required values we need, Now we can put them in a simple mathematical formula as below:

STEP 1 Y = 21/140

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

STEP 2 Y = 21/140 × 100/100 = 15/100

STEP 3 Y = 15

Finally, we have found the value of Y which is 15 and that is our answer.

You can use a calculator to find what percent of 140 is 21, just enter 21 ÷ 140 × 100 and you will get your answer which is 15

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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% / 140 = Y% / 21

Drop the percentage marks to simplify your calculations: 100 / 140 = Y / 21

Multiply both sides by 21 to isolate Y on the right side of the equation: 21 ( 100 / 140 ) = Y

Computing the left side, we get: 15 = Y

This leaves us with our final answer: 15 percent of 140 is 21