20 percent of 42

"Percent of Number" Calculator
What is
%
of

What's 20 percent of 42?

Answer

20 percent of 42 is
8.4

(Eight point four)

8.4 is 20% of 42

20 percent of 42 calculation explanation

In order to calculate 20% of 42 let's write it as fractional equation.

We have 42 = 100% and X = 20%. So our fraction will look like:

42
X
=
100%
20%

Now we can solve our fraction by writing it as an equation:

X = (42 × 20) ÷ 100

=

X = 840 ÷ 100

=

X = 8.4

Therefore, 20% of 42 is 8.4


Another way to solve our problem is to find the value of 1% of the number and then multiply it by the number of percent (20). To find 1% of a number 42 you need to divide it by 100:

X = (42 ÷ 100) × 20

=

X = 0.42 × 20

=

X = 8.4

So we got the same result again: 8.4

See Also

About "Percent of Number" Calculator

This calculator will help you to calculate percent of a given number. For example, it can help you find out what's 20 percent of 42? (The answer is: 8.4). Enter the percent (e.g. 20) and the number (e.g. 42). Then hit the 'Calculate' button.

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FAQ

What's 20 percent of 42?

20 percent of 42 is 8.4

How do you calculate 20% of 42?

To calculate 20% of 42, multiply 42 by 20 and divide by 100. The result is 8.4.

How much is 1% of 42?

One percent of 42 is 0.42. Multiplying that by 20 gives 8.4 — the quickest way to work the answer out in your head.