Math & science
Fraction calculator
Add, subtract, multiply and divide fractions.
Let’s run the numbers
USDEnter your values, then calculate.
◇ Calculated on your device. No account needed.
THE NUMBERS, MADE CLEARInstant calculation
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Your answer starts here
Check your inputs and select Calculate.
Calculated from your inputs; displayed results are rounded.
Formula & assumptions
a/b + c/d = (ad + bc) / bd
Calculated from your inputs; displayed results are rounded.