∑ DANEMATHICS
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Grade 8 · Common Fractions
Equivalent Fractions & Simplifying
MEMORANDUM
Name:
Class:
Date:
Mark
/ 10
Answer all questions. Show all your working — marks are awarded for method as well as the final answer. Teacher copy: accept any correct equivalent method.
- 1Fill in the missing number: 2/7 = (?)/21(1)7 × 3 = 21, so 2 × 3 = 6 → 6/21✓ (1)
- 2Fill in the missing number: 3/4 = 15/(?)(1)3 × 5 = 15, so 4 × 5 = 20✓ (1)
- 3Write two fractions equivalent to 3/4.(2)e.g. 6/8 and 9/12✓✓ (2)
- 4Simplify 12/18.(1)HCF = 6 → 2/3✓ (1)
- 5Simplify 45/60.(2)HCF = 15 → 3/4✓✓ (2)
- 6Simplify 24/36.(1)HCF = 12 → 2/3✓ (1)
- 7Is 7/9 in lowest terms? Give a reason.(2)Yes — 7 and 9 share no common factor except 1.✓✓ (2)
TOTAL: 10 marks