Fraction Calculator

Add, subtract, multiply and divide fractions with the steps shown.

Fraction Calculator

Fast online calculation engine

Amount / Value 1

Rate / Percentage / Value 2

Tenure / Value 3

Output Result100010

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What does Fraction Calculator do?

Perform arithmetic on two fractions and get the answer in lowest terms, as a mixed number and as a decimal. The working is shown, including the common denominator used, so it doubles as a study aid.

How to Use Fraction Calculator

1
Enter the first fractionNumerator and denominator, plus a whole part if mixed.
2
Choose the operationAdd, subtract, multiply or divide.
3
Enter the second fractionThe answer appears simplified automatically.

Key Features

All four operations on proper, improper and mixed fractions
Answer given simplified, as a mixed number and as a decimal
Shows the common denominator and the intermediate step
Exact integer arithmetic, so large numerators never lose precision
Refuses division by a zero fraction with a clear message

Frequently Asked Questions

How do I add fractions with different denominators?

Convert both to a common denominator, add the numerators, then simplify. 1/3 + 1/4 becomes 4/12 + 3/12 = 7/12. The calculator shows this intermediate step.

How do I divide fractions?

Multiply by the reciprocal — flip the second fraction and multiply. 2/3 ÷ 4/5 becomes 2/3 × 5/4 = 10/12 = 5/6.

What is an improper fraction?

One where the numerator is larger than the denominator, such as 7/4. It can be written as the mixed number 1 3/4. Both forms are shown for every answer.