Subtracting Fractions Calculator
Subtract one fraction or mixed number from another, with the common denominator and the answer simplified.
Change the values and press Calculate to work out your own figures.
Enter two fractions (a whole-number part is optional).
Show the working
- Common denominator: 6
- 4/6 − 1/6 = 3/6
- Simplify: 1/2
How to use it
Enter two fractions (a whole-number part is optional).
Numbers can be whole numbers, decimals (0.75), fractions (3/4), mixed numbers (1 1/2), repeating decimals (0.(3)) and, where a percent is asked for, percentages (75%). Show the working gives each step.
Key facts
a/b − c/d = (ad − bc) ÷ bd
Borrowing with mixed numbers
The calculator converts mixed numbers to improper fractions first, so there is no borrowing to get wrong.
Questions
What is 2/3 − 1/6?
1/2.
What is 1/4 − 3/4?
-1/2.
Formulas
a/b − c/d = (ad − bc) ÷ bd
Sources
Limitations
- Numbers have at most 120 digits.