Fraction Calculator
Add, subtract, multiply, and divide fractions or mixed numbers, then follow every step to the simplified answer.
Fractions & mixed numbers
Whole-number fields are optional. Steps expand automatically after solving.
Your result
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Calculation steps
Expanded automatically so you can follow the method.
More fraction tools
Simplify, convert, compare, or calculate with extremely large integers.
Simplify a fraction
Reduce a fraction and see the greatest common divisor used.
Decimal to fraction
Finite and repeating decimals work. Use 0.(3) or 1.2(34) for repeating digits.
Fraction to decimal
See the exact terminating or repeating decimal pattern.
Compare two fractions
Cross-multiply exactly to see which fraction is larger.
Big-number fraction calculator
Calculate exact fractions far beyond normal JavaScript number limits with BigInt.
About the Fraction Calculator
A fraction represents part of a whole. This calculator keeps the arithmetic exact, simplifies every result, and explains the method step by step.
Adding and subtracting fractions
The calculator finds a common denominator, creates equivalent fractions, combines the numerators, and reduces the result.
Multiplying and dividing fractions
Multiply numerators and denominators directly. For division, multiply the first fraction by the reciprocal of the second.
Mixed numbers
Mixed numbers are converted to improper fractions first. A negative mixed number such as −2 ¾ is treated as the negative value of the entire number.
Exact large-number support
Numerators and denominators use JavaScript BigInt, allowing exact calculations with huge integers.
Privacy
Every calculation happens locally in your browser. Toolslight does not upload or save your values or answers.