Subtracting Fractions Calculator

Subtract one fraction from another.

Difference 5/12

As decimal 0.4167

Formula: a/b − c/d = (ad − bc) / bd

Step-by-step with your numbers:

1. Values used:

2. Numerator 1 = 3

3. Denominator 1 = 4

4. Numerator 2 = 1

5. Denominator 2 = 3

7. Difference = 5/12

8. As decimal = 0.4167

Did we solve your problem today?

Subtract fractions using a common denominator.

The math behind it

a/b − c/d = (ad − bc) ÷ bd, then simplify.

3/4 − 1/3 = 5/12.

Negative result?

That's fine — the first fraction was smaller.