How do I simplify a fraction?

Divide both the numerator and denominator by their greatest common divisor (GCD). For example, 8/12 simplifies to 2/3 because GCD(8,12) = 4. This tool does that automatically.

How do I add fractions with different denominators?

Find a common denominator (the product of the two denominators works), multiply each fraction to use that denominator, then add the numerators. The tool shows the final simplified result.

Can I use whole numbers?

Yes. Set the denominator to 1 — e.g., to use 3 as a fraction, enter 3/1.

What does 'mixed number' mean?

A mixed number combines a whole number and a proper fraction, like 1 1/2 instead of 3/2. The tool shows both forms for improper fractions.

Fraction Calculator

Calculators· 14 tools

Free online fraction calculator. Enter two fractions and an operator (+ − × ÷) to get the result as a simplified fraction, mixed number, and decimal. Works with negative fractions and whole numbers (just set denominator to 1). Great for math homework, recipes, and quick checks.

First

Second

Simplified fraction

5/6

Mixed number

—

Decimal

0.833333

Frequently Asked Questions

References

Fractions — Khan Academy — Khan Academy

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Frequently Asked Questions

References and sources

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