Fraction Calculator β add, subtract, simplify
Add, subtract, multiply and divide fractions, simplify them, and convert to mixed numbers or decimals.
π Runs entirely in your browser. Your input and output are never sent to a server or stored β fully private.
Updates live. The result is auto-reduced to lowest terms. Click a result to copy.
About this tool
This fraction calculator adds, subtracts, multiplies and divides fractions and gives the answer already reduced to its simplest form. It also converts the result into a mixed number or a decimal, and handles whole numbers and mixed numbers in the input. Every step is computed in your browser, which makes it a quick check for homework and recipes alike.
Frequently asked questions
Does it simplify the answer automatically?
Yes. After each operation the result is reduced to its lowest terms by dividing the numerator and denominator by their greatest common divisor, and it is also shown as a mixed number and a decimal so you can use whichever form you need.
Can I work with mixed numbers and whole numbers?
Yes. You can enter mixed numbers such as 1 1/2, plain whole numbers, and improper fractions like 7/4, and mix them in the same calculation. The tool converts everything internally so the arithmetic stays exact.
Is my data sent anywhere?
No. The fractions you enter are calculated locally in your browser and are never uploaded to or stored on a server.