Fraction Calculator

Add, subtract, multiply, and divide fractions. Simplify results automatically.

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Enter your fractions above. Results are simplified automatically.

How to Calculate Fractions

Working with fractions can be complex, but breaking it down into steps makes it manageable. Here is how our calculator handles each operation:

Adding & Subtracting

To add or subtract fractions, they must have a common denominator.

  1. Find the Least Common Multiple (LCM) of the denominators.
  2. Convert each fraction to an equivalent fraction with the LCM as the denominator.
  3. Add or subtract the numerators.
  4. Simplify the result.

Multiplying & Dividing

Multiplying is straightforward, but division requires one extra step.

  • Multiply: Multiply the numerators together and the denominators together. Simplify.
  • Divide: Flip the second fraction (find its reciprocal) and then multiply as usual.

Simplifying Fractions

To simplify a fraction, find the Greatest Common Divisor (GCD) of the numerator and denominator. Divide both by that number. If the numerator is larger than the denominator, the result can be expressed as a mixed number.