calculators
Fraction Calculator
Add, subtract, multiply, divide, and simplify fractions locally in your browser, with improper fraction, mixed number, and decimal reference output.
Tool workspace
The interactive tool requires JavaScript.
Instructions
Use forms such as 3/4, -2/5, 1 1/2, an integer, or a short decimal.
Choose simplify, add, subtract, multiply, or divide, then review the reduced fraction and decimal approximation.
Use this browser-local fraction calculator for homework checks, recipe scaling drafts, spreadsheet review, and everyday arithmetic. It handles common numeric fraction formats and shows the formula path without promising symbolic algebra.
Direct answer
A fraction calculator combines two fractions with addition, subtraction, multiplication, or division, then reduces the result by the greatest common divisor. This tool also simplifies a single fraction and displays an improper fraction, mixed number, and decimal approximation.
How to use this tool
- Enter one fraction to simplify, or enter two fractions for arithmetic.
- Use forms such as 3/4, -2/5, 1 1/2, an integer, or a short decimal.
- Choose simplify, add, subtract, multiply, or divide, then review the reduced fraction and decimal approximation.
Supported fraction formats
The calculator accepts proper fractions, improper fractions, integers, negative fractions, mixed numbers such as 1 1/2, and decimals with limited decimal places.
How arithmetic is handled
Addition and subtraction use a common denominator, multiplication multiplies numerators and denominators, and division multiplies by the reciprocal of the second fraction.
What the result does not do
The result is ordinary numeric arithmetic. It does not solve symbolic equations, factor algebraic expressions, prove identities, or provide professional dosage, engineering, finance, tax, or legal advice.
Frequently asked questions
Can I enter mixed numbers?
Yes. Use a space between the whole number and the fraction, such as 1 1/2 or -2 3/4.
Why does division reject a zero second fraction?
Dividing by zero is undefined. The second fraction becomes the reciprocal in division, so a zero numerator cannot be used.
Is the decimal output exact?
The fraction result is reduced exactly with integer arithmetic. The decimal line is a rounded display reference for quick review.
Does the tool upload my values?
No. Fraction parsing and arithmetic run in the browser without accounts, databases, backend services, or external APIs.
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