Math tool
Fraction Calculator
Enter two fractions and an operation to get the simplified result.
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About the Fraction Calculator
The Fraction Calculator adds, subtracts, multiplies and divides fractions and displays the answer in simplest form. It helps with homework, recipes, measurements and checking manual working.
To add or subtract fractions you first find a common denominator. Multiplication multiplies numerators and denominators directly, and division multiplies by the reciprocal of the second fraction. The result is reduced by dividing numerator and denominator by their greatest common divisor, which is why 6/8 becomes 3/4.
How to use it
- Enter the numerator and denominator of the first fraction.
- Choose the operation.
- Enter the second fraction.
- Read the simplified result.
Tips and good to know
- A denominator of zero is not allowed.
- Convert mixed numbers like 1 1/2 into improper fractions (3/2) before entering them.
- Check results by estimating with decimals.
Frequently asked questions
Does it show decimal values?
The result is shown as a simplified fraction, and you can divide to get a decimal.
Can it handle negative fractions?
Yes, use a minus sign on the numerator.
Why is dividing by a fraction the same as multiplying?
Multiplying by the reciprocal gives the same value.