Fraction Calculator
Add, subtract, multiply or divide two fractions and see the reduced fraction, mixed number and decimal — exact and in your browser.
🔒 All calculations happen only in your browser.
Fraction arithmetic at once
Enter two fractions, pick an operation (＋−×÷) and the result appears instantly, automatically finding a common denominator and reducing — avoiding the common mistakes of doing it by hand.
Reduced, mixed and decimal
The result is shown as a reduced fraction, a mixed number (e.g. 1⅔) and a decimal, so you can use whichever form fits. For example 1/2 + 1/3 shows 5/6 and 0.8333…
Exact integer math
Converting fractions to decimals can introduce floating-point errors; this tool keeps numerators and denominators as integers and reduces only at the end, so results are always exact.
Frequently asked questions
Which operations are supported?
Addition, subtraction, multiplication and division of two fractions, with reduced/mixed/decimal output.
Is the result auto-reduced?
Yes, it divides by the GCD to always show the lowest terms.
Can I see a mixed number?
Yes — for example 5/3 is also shown as 1⅔.
Is it accurate?
Yes; it computes with integers, avoiding floating-point error.