Fraction Calculator
Enter two fractions and pick an operation below to instantly get the simplified result.
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Result
11/12
Fraction Operations
Addition and subtraction need a common denominator first. Multiplication and division work straight across the numerators and denominators. Every result is automatically simplified to lowest terms.
Worked example
Add 3/4 + 1/6.
Common denominator of 4 and 6 is 12: 3/4 = 9/12, and 1/6 = 2/12.
9/12 + 2/12 = 11/12
Frequently Asked Questions
How do you add or subtract fractions?
Convert both fractions to a common denominator, then add or subtract the numerators. a/b + c/d = (ad + bc) / bd.
How do you multiply fractions?
Multiply the numerators together and the denominators together: a/b × c/d = (a × c) / (b × d). No common denominator needed.
How do you divide fractions?
Multiply the first fraction by the reciprocal of the second: a/b ÷ c/d = a/b × d/c.
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