Fraction Calculator
Add, subtract, multiply or divide two fractions and simplify the result.
Results update as you type.
About this calculator
A fraction calculator performs arithmetic on two fractions — addition, subtraction, multiplication and division — then reduces the answer to its lowest terms. It also shows the result as a decimal and as a mixed number. Fractions are combined over a common denominator and simplified by dividing through by the greatest common divisor.
Frequently asked questions
How do you add two fractions?
Give both fractions a common denominator, add the numerators, then simplify. 1/2 + 1/3 becomes 3/6 + 2/6 = 5/6.
How is the answer simplified?
The numerator and denominator are divided by their greatest common divisor (GCD). 6/8 has a GCD of 2, so it reduces to 3/4.
How do you divide fractions?
Multiply the first fraction by the reciprocal (the flip) of the second. 1/2 ÷ 3/4 = 1/2 × 4/3 = 4/6 = 2/3.
Results are estimates for general guidance only, not financial, medical or tax advice.