Fraction Calculator — Exact Fractions, Mixed & Steps

How to use

1. Enter both fractions — negative or improper is fine.
2. Choose +, −, × or ÷.
3. Press Calculate for the simplified fraction, mixed number and decimal.
4. Read the step-by-step working, including the LCD when it's used.

About this tool

Fraction arithmetic deserves exact answers, not 0.333333 guesses. Enter two fractions — negatives and improper fractions are fine — pick an operation, and this calculator does the arithmetic the way it's taught: for addition and subtraction it finds the least common denominator, rescales both fractions and combines the numerators; multiplication multiplies straight across; division flips the second fraction and multiplies, with a proper error if you try to divide by zero. Every result comes back four ways: the simplified fraction (reduced with the greatest common divisor), the mixed number, the decimal equivalent, and the full step-by-step working including the LCD when it's used. Teachers can project the steps; students can check homework honestly. All the math runs locally on this page.

FAQ

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