Fraction to percentage calculator
Enter a numerator and denominator and the calculator converts the fraction into a percentage. The decimal form is shown on the way, because that is the key to the conversion.
The fraction 3/5 is 60.00%.
Formula
a is the numerator and b the denominator. Divide first, then multiply by 100 — a percentage is a hundredth part of the whole.
How we got there
A fraction greater than one gives more than 100%. For instance 5/4 is 125%.
How to convert a fraction to a percentage by hand
- Divide the numerator by the denominator
3 ÷ 5 = 0.6. That is the decimal form.
- Multiply by 100
0.6 × 100 = 60%.
- Shortcut for a denominator of 100
If the denominator is 100, the numerator is already the percentage: 37/100 is 37%.
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Frequently asked questions
Divide the numerator by the denominator and multiply by 100. For 3/5 that gives 60%.
Write the percentage over 100 and reduce. 60% is 60/100 = 3/5.
Yes, when the fraction is greater than one. 5/4 is 125%.
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