Fraction calculator
Add, subtract, multiply and divide fractions, with the answer simplified.
About this calculator
Enter two fractions and choose an operation. The answer is shown in its simplest form, as a mixed number when it is bigger than one, and as a decimal.
To add or subtract, fractions need the same bottom number. The calculator does that for you.
Common questions
How do I divide fractions?
Flip the second fraction and multiply.
How do I simplify a fraction?
Divide the top and bottom by their greatest common factor. The calculator does this automatically.
More free calculators
Scientific calculator
Trig, logs, powers, roots and brackets.
Percentage calculator
Percent of a number, percent change, increase or decrease.
Percentage change calculator
Percent increase or decrease between two numbers.
Average calculator
Mean, median, mode and range of a list.
Standard deviation calculator
Standard deviation, variance and mean.
Triangle calculator
Area, perimeter and angles from three sides.