Fraction Calculator

Add, subtract, multiply, and divide fractions.

Enter a value for all required fields.

この計算機について

Add, subtract, multiply, and divide fractions.

How to use

  1. Enter the required values.
  2. Review the result instantly.

Formula

Convert each fraction to a common form, apply the chosen operation, then reduce by the greatest common divisor.

Example

1/2 + 1/3 = 5/6

FAQ

What if a denominator is zero?

A denominator of zero is invalid, so the calculator shows an error.

Can I divide by a fraction with numerator zero?

No. Division by zero is not allowed.

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Measure percentage increase or decrease between two values.

結果は参考情報です。重要な計算は必ずご自身で確認してください。