How to use the fraction calculator
Enter the numerator and denominator of two fractions, choose an operation, and the calculator gives the answer simplified to lowest terms, as a mixed number and as a decimal.
Fraction rules
- Add or subtract: use a common denominator, then add or subtract the numerators.
- Multiply: multiply the numerators and multiply the denominators.
- Divide: multiply by the reciprocal of the second fraction.
Results are simplified by dividing the top and bottom by their greatest common divisor.
Frequently asked questions
What is 3/4 + 5/6?
3/4 + 5/6 = 19/12, which is 1 7/12 as a mixed number.
Can I use negative fractions?
Yes. Enter a negative numerator and the sign is carried through to the answer.