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Fraction Calculator

Add, subtract, multiply, divide and simplify fractions. Supports proper fractions, improper fractions, and mixed numbers.

Enter Fractions

For mixed numbers, add the whole number in the field above the fraction line.


Simplify a Single Fraction

Result
Result
FormValue

How to Calculate with Fractions

Addition & Subtraction

Find the Least Common Denominator (LCD), convert both fractions to equivalent fractions with the LCD, then add or subtract the numerators. Example: 1/2 + 1/3 = 3/6 + 2/6 = 5/6.

Multiplication

Multiply numerator × numerator and denominator × denominator. Then simplify. Example: 2/3 × 3/4 = 6/12 = 1/2.

Division

Multiply the first fraction by the reciprocal of the second. Example: 2/3 ÷ 4/5 = 2/3 × 5/4 = 10/12 = 5/6.

Simplification

Divide both numerator and denominator by their Greatest Common Factor (GCF). Example: 8/12 → GCF(8,12)=4 → 2/3.