This key facts covers Fraction Operations Overview within Fraction Operations for GCSE Mathematics. Revise Fraction Operations in Number for GCSE Mathematics with 14 exam-style questions and 22 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 2 of 15 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.
Fraction Operations Overview
- Addition/Subtraction: Need common denominators first
- Multiplication: Simply multiply tops and bottoms
- Division: Flip the second fraction and multiply (KFC method)
- Mixed Numbers: Convert to improper fractions first
Practice questions for Fraction Operations
Which of these fractions is the largest? ⅔ ¾ ⅗ ⅝
Explain why you need a common denominator when adding fractions, but not when multiplying fractions.
Quick recall flashcards
Multiplying fractions
Top × Top, Bottom × Bottom
2/3 × 3/4 = 6/12 = 1/2
No need for common denominators!
Quick: 1/2 of 3/4
1/2 × 3/4 = 3/8
Half of anything: divide by 2
Or multiply by 1/2