Fraction Calculator
Add, subtract, multiply, or divide two fractions, simplified to lowest terms with steps.
How to add or subtract fractions
- Enter the numerator and denominator of each fraction.
- Pick an operation: +, −, ×, or ÷.
- Read the answer in lowest terms, with the common denominator shown.
Frequently asked questions
How do you add fractions with different denominators?
Find the least common denominator (LCD), rewrite each fraction over the LCD, add the numerators, then simplify. For example, 1/2 + 1/3 uses an LCD of 6: 3/6 + 2/6 = 5/6.
How do you divide fractions?
Multiply the first fraction by the reciprocal of the second — flip the second fraction and multiply. For example, 1/2 ÷ 1/4 = 1/2 × 4/1 = 4/2 = 2.