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Fraction Calculator

Add, subtract, multiply, and divide fractions with step-by-step solutions.. Free, no signup, works in your browser.

All calculations happen locally in your browser. No data is sent to any server.

About Fraction Calculator

This fraction calculator performs all four operations on fractions: addition, subtraction, multiplication, and division. Enter two fractions with their numerators and denominators, choose an operation, and get an instant result. Every answer is automatically simplified to lowest terms using the greatest common factor. The calculator also shows the result as a mixed number and decimal, plus a step-by-step breakdown of the solution. It handles negative fractions and finds the least common denominator for addition and subtraction. All calculations happen in your browser — no data leaves your device.

Frequently Asked Questions

How do you add fractions with different denominators?
Find the least common denominator (LCD), convert both fractions to equivalent fractions with the LCD, then add the numerators. The calculator does this automatically and shows the steps.
How do you divide fractions?
Flip the second fraction (reciprocal) and multiply. For example, 2/3 ÷ 4/5 becomes 2/3 × 5/4 = 10/12 = 5/6. The calculator shows this 'flip and multiply' step.
Are results automatically simplified?
Yes. Every result is simplified to lowest terms by dividing both numerator and denominator by their greatest common factor (GCF). The simplified form, mixed number, and decimal are all shown.

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