Fraction Calculator

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Add, subtract, multiply and divide fractions and mixed numbers.

How the calculation works

Enter each fraction as a whole number, numerator and denominator. The result is simplified to lowest terms and shown as a fraction, a mixed number and a decimal.

Formula used

a/b + c/d = (ad + bc) ÷ bd; a/b × c/d = ac ÷ bd; a/b ÷ c/d = ad ÷ bc

Example

1/2 + 1/3 = 5/6, which is 0.8333 as a decimal.

Frequently asked questions

How do I enter a mixed number?

Put the whole number in the whole number box, for example 2 and 1/4.

How do I enter a negative fraction?

Use a negative whole number, or a negative numerator when the whole number is 0.

Results are estimates for general information only and are not professional financial, medical or legal advice.