MotionShine01 / Add
Common bottoms
To add or subtract, both fractions get the same denominator, then the tops are added.
Free tool
Fraction calculator, with the steps.
Type two fractions or mixed numbers, like 3/4 and 1 2/3, pick add, subtract, multiply or divide, and get the answer in its simplest form, as a mixed number and as a decimal, with each step written out. Below, simplify a single fraction or turn a decimal like 0.375 into a fraction. The maths is exact, so nothing is rounded.
Simplify a fraction or a decimal
Worked out in your browser. Nothing is sent anywhere.
The rules
Fractions, step by step.
02 / Multiply
Tops and bottoms
Multiply the tops together and the bottoms together. To divide, flip the second fraction first.
03 / Simplify
Smallest form
Divide top and bottom by their greatest common factor: 18/24 becomes 3/4.
Questions
Good to know.
How do I type a mixed number?
With a space: 1 2/3 means one and two thirds.
How do I add fractions?
Find a common denominator, convert both fractions, add the tops and simplify. The steps are shown.
How do I divide fractions?
Flip the second fraction and multiply.
Can it turn a decimal into a fraction?
Yes. Type 0.375 in the lower box and you get 3/8.
Are answers rounded?
No. Fractions are worked out exactly; only the decimal is rounded for display.