# How do you convert fractions to percentages?

## Redirected from What is 3/8 written as a percent

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Do the division.

$\frac{15}{100} = 0.15 = 15\% \cdot 100$

This also works when the numbers are not 100 (even though that's the definition of a percent!) this is because those fractions are said to be proportional to each other. Thus we can reduce the above fraction to...

$\frac{3}{20} = 0.15 = 15\% \cdot 100$

(you can test this with a calculator if you like)