Fraction Calculator
Add, subtract, multiply and divide two fractions and get a fully simplified fraction, mixed number and decimal. Great for homework, recipes and measurements.
Use strict integer fractions, whole numbers or mixed numbers, for example: -2 1/3 + 5/6 × 3/4. Supported operators: +, −, × and ÷; standard ×/÷ precedence is applied.
Recipe cups? Cooking converter · find GCD/LCM: GCD & LCM calculator · recipe %: Percentage calculator.
Calculate with fractions
Enter a chain of integer fractions, whole numbers or mixed numbers. Exact BigInt rational arithmetic uses LCM denominators and pre-multiplication cross-cancellation, then shows the lowest-term result, mixed number and decimal approximation.
FAQ
What can it do?
Add, subtract, multiply and divide a chain of fractions. It returns the exact result in lowest terms, as a mixed number and as a decimal approximation.
Does it simplify the result?
Yes. BigInt rational arithmetic keeps integer inputs exact, uses LCM denominators for addition and subtraction, and cross-cancels before multiplication or division.
Can I see the steps?
Yes — each operation in the chain shows its exact reduced result. You can copy the steps or print the worksheet.
Can I use negative, improper or mixed fractions?
Yes. Examples include -7/3, 8/5 and -2 1/3. Numerators and denominators must be strict integers; decimal input is rejected rather than truncated.
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