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Fraction Calculator
Add, subtract, multiply, or divide two fractions and see the simplified fraction, decimal value, and mixed-number form.
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Your result
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Enter your values and select Calculate. Your result stays on this device.
How it works
Addition and subtraction use a common denominator; multiplication multiplies across; division multiplies by the reciprocal. The result is reduced by the greatest common divisor.
Assumptions
Numerators and denominators are whole numbers, and neither denominator can be zero.
About this calculator
This free fraction calculator targets the full arithmetic task rather than returning only a decimal. Enter two fractions, choose an operation, and compare the reduced fraction with its decimal and mixed-number forms.
How to use it
- Enter the numerator and nonzero denominator of the first fraction.
- Choose addition, subtraction, multiplication, or division.
- Enter the second fraction and calculate.
- Review the greatest-common-divisor reduction, decimal value, and mixed-number form.
Use case
fraction calculator: a clear planning check
Add, subtract, multiply, or divide two fractions and see the reduced result, decimal value, mixed-number form, and greatest-common-divisor check.
Solve and simplify fraction arithmetic while comparing improper-fraction, mixed-number, and decimal forms.
Method and update
Last reviewed: 2026-08-10. This tool performs the stated formula locally in your browser using the values you enter.
Frequently asked questions
How do you add fractions with different denominators?
Create a common denominator, convert both numerators, add them, and reduce the result.
How do you divide fractions?
Multiply the first fraction by the reciprocal of the second fraction.
Does the calculator simplify fractions?
Yes. It divides numerator and denominator by their greatest common divisor.
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