How to calculate fractions
Fractions represent parts of a whole. To add or subtract, use a common denominator. To multiply, multiply numerators and denominators. To divide, multiply by the reciprocal. For step-by-step teaching (not just the final fraction), see the AI math solver guide or the math calculator.
Rules
- Addition: a/b + c/d = (ad + bc) / bd
- Subtraction: a/b − c/d = (ad − bc) / bd
- Multiplication: a/b × c/d = ac / bd
- Division: a/b ÷ c/d = ad / bc
Keep reading
Related guides on Gionth that go deeper on this topic.
- AI math solver guide see the fraction steps explained
- Percentage calculator when fractions become percents
- Math homework help more practice problems