Fraction Calculator
Enter two fractions and pick an operation.
Notes
- Negative fractions are supported. The sign is normalized onto the numerator, so -1/2 and 1/-2 give the same answer.
- A zero denominator is rejected, as is dividing by a fraction that equals zero.
Common questions
- How do I convert a mixed number for this calculator?
- Multiply the whole number by the denominator and add the numerator. 2 1/3 becomes 7/3, since 2 x 3 + 1 = 7.
- What does lowest terms mean?
- Both parts are divided by their greatest common divisor, so 8/12 becomes 2/3. The value is unchanged, just written as simply as possible.