Mixed number and fraction calculator
Add, subtract, multiply and divide fractions. See the reduced fraction, mixed number and decimal approximation.
How do I use this page?
- Enter values or use the example in the form.
- Choose a mode or units where available.
- Read the result and check the calculation steps below.
What this page does not do: Enter 2/3, -1 1/2 or 0.25. Denominators and divisors cannot be zero. A minus sign applies to the whole mixed number.
Further reading
Theory — how are fraction operations calculated?
Working with fractions starts by rewriting mixed numbers in improper form, for example 1 1/2 becomes 3/2. Addition and subtraction require a common denominator, as shown by 3/2 + 2/3 = 13/6, equal to 2 1/6 when written as a mixed number. Multiplication multiplies numerators and denominators separately, while division multiplies by the reciprocal of the second fraction. The calculator shows the result reduced, as a mixed number, and as a decimal approximation.
Frequently asked questions
How is the result calculated?
What are the limitations?
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