Fraction calculator

Full fraction arithmetic with automatic lowest-terms simplification, mixed-number output, a dedicated simplifier, and decimal→fraction conversion.

How to Fraction calculator

1. Step 1. Enter both fractions (numerator and denominator).
2. Step 2. Choose the operation: add, subtract, multiply, or divide.
3. Step 3. Read the result as a fraction, mixed number, and decimal.
4. Step 4. Use the simplify tab to reduce any single fraction.

Frequently asked questions

How do I add fractions with different denominators?

Find a common denominator (multiply the two), convert both fractions, add the numerators, then simplify. The tool does all steps automatically.

How do I convert a decimal to a fraction?

The calculator searches denominators up to 10,000 for the closest exact fraction — e.g. 0.375 = 3/8 exactly.

What is a mixed number?

A whole number plus a proper fraction, e.g. 11/4 = 2¾. Results display in both improper and mixed forms.