How it works
Fractions are combined using standard rules: common denominators for add/subtract, straight multiplication for multiply, and multiply-by-reciprocal for divide. The result is simplified using the greatest common divisor.
Example
1/2 + 1/3 = 5/6.
Assumptions & limitations
Division by a zero-numerator second fraction is not defined and will show no result.
Frequently asked questions
Does this simplify the answer automatically?
Yes, results are always reduced to lowest terms.