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Fraction Calculator Guide
Add, subtract, multiply, or divide two fractions and get the answer fully simplified, plus its decimal and mixed-number form. Great for homework, recipes, and measurements.
Add/subtract: use a common denominator, then combine numerators. Multiply: multiply across. Divide: multiply by the reciprocal. Then simplify by the greatest common divisor.
How Do I Add Fractions?
Give both fractions the same denominator (multiply them together if needed), add the numerators, then reduce. For example, 1/2 + 1/3 = 3/6 + 2/6 = 5/6.
The Four Operations
| Operation | Example |
|---|---|
| Add | 1/2 + 1/3 = 5/6 |
| Subtract | 1/2 − 1/3 = 1/6 |
| Multiply | 1/2 × 1/3 = 1/6 |
| Divide | 1/2 ÷ 1/3 = 3/2 |
Working with percentages instead? See the Percentage Calculator, or find a simple mean with the Average Calculator.
Frequently Asked Questions
How do I add fractions?
Convert them to a common denominator, add the numerators, then simplify the result.
What is 1/2 plus 1/3?
It's 5/6, found by rewriting both over a denominator of 6 and adding.
How do I divide fractions?
Multiply the first fraction by the reciprocal of the second — flip the second fraction and multiply.
How do I simplify a fraction?
Divide the numerator and denominator by their greatest common divisor.
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