It"s an extremely common as soon as learning around fractions to want to recognize how transform a portion like 21/40 right into a percentage. In this step-by-step guide, we"ll show you how to revolve any fraction into a percent really easily. Let"s take a look!

Want to quickly learn or display students exactly how to transform 21/40 to a percentage? pat this very quick and fun video clip now!

Before we obtain started in the fraction to percent conversion, let"s go over some really quick fraction basics. Remember that a molecule is the number above the portion line, and the denominator is the number below the portion line. We"ll use this later on in the tutorial.

You are watching: 21/40 as a percent

When we are using percentages, what we are really saying is the the portion is a portion of 100. "Percent" means per hundred, and so 50% is the very same as saying 50/100 or 5/10 in portion form.

So, since our denominator in 21/40 is 40, we could adjust the fraction to make the denominator 100. To carry out that, we divide 100 through the denominator:

100 ÷ 40 = 2.5

Once we have actually that, we can multiple both the numerator and denominator by this multiple:

21 x 2.5/40 x 2.5=52.5/100

Now we deserve to see that our fraction is 52.5/100, which method that 21/40 together a portion is 52.5%.

We can additionally work this the end in a simpler means by first converting the portion 21/40 to a decimal. To carry out that, we merely divide the numerator by the denominator:

21/40 = 0.525

Once we have the price to the division, we deserve to multiply the prize by 100 to make it a percentage:

0.525 x 100 = 52.5%

And there you have actually it! Two various ways to convert 21/40 to a percentage. Both are pretty straightforward and easy come do, yet I personally like the transform to decimal technique as that takes less steps.

I"ve viewed a most students get perplexed whenever a inquiry comes up about converting a fraction to a percentage, however if you monitor the steps laid out here it need to be simple. That said, you may still need a calculator for more facility fractions (and friend can constantly use our calculator in the kind below).

If you want to practice, grab you yourself a pen, a pad, and a calculator and shot to convert a couple of fractions come a portion yourself.

Hopefully this tutorial has actually helped you to understand how to convert a portion to a percentage. You can now go forth and convert fractions to percentages as lot as your tiny heart desires!

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