Math
Fraction Calculator
Add, subtract, multiply or divide fractions — simplified instantly.
Fraction Calculator
Result
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How to calculate with fractions
To add or subtract fractions, find a common denominator, then combine the numerators. To multiply, multiply numerators and denominators. To divide, multiply by the reciprocal. This tool gives the answer in simplest form and as a decimal.
Frequently asked questions
How do I add fractions?
Find a common denominator, add the numerators, then simplify. For example, 1/2 + 1/3 = 3/6 + 2/6 = 5/6.
How do I divide fractions?
Multiply the first fraction by the reciprocal of the second: a/b ÷ c/d = a/b × d/c.
What does simplest form mean?
The numerator and denominator share no common factor other than 1, e.g. 6/8 simplifies to 3/4.