Fraction Calculator
Add, subtract, multiply, divide fractions
100% Private & In-Browser
Processed locally using client-side JavaScript. Your files and data never touch any server.
Instant & Unlimited
No registration, no waiting queues, and no limits on file conversions or generations.
What is Fraction Calculator?
The Fraction Calculator adds, subtracts, multiplies, and divides fractions — including mixed numbers — and automatically simplifies the result to lowest terms, showing the decimal equivalent alongside. No more common-denominator gymnastics by hand.
How to use Fraction Calculator
Enter the first fraction (numerator and denominator, or a mixed number).
Choose the operation: +, −, ×, or ÷.
Enter the second fraction.
Read the simplified result with its decimal value, ready to copy.
- All four operations on proper, improper, and mixed fractions
- Automatic simplification to lowest terms with the exact math shown
- Decimal conversion alongside the fractional result
- Instant, private, and free — computed on your device
- Homework checking: verify hand-worked fraction arithmetic step by step.
- Scaling recipes that use cup and tablespoon fractions.
- Workshop and sewing measurements expressed in exact fractions, not rounded decimals.
Frequently Asked Questions
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