Year 7 Ratio Worksheet — Level 2 — Practice Set 4 — Answers
Answer sheet with worked solutions for the Year 7 ratio & rates worksheet.
Year 7 Ratio Worksheet — Level 2 — Practice Set 4 — Answers
Part A: Simplify
1.Simplify the ratio 36 : 96
Answer: 3 : 8
- HCF of 36 and 96 is 12
- Divide both parts by 12
2.Simplify the ratio 54 : 54
Answer: 1 : 1
- HCF of 54 and 54 is 54
- Divide both parts by 54
3.Simplify the ratio 16 : 24
Answer: 2 : 3
- HCF of 16 and 24 is 8
- Divide both parts by 8
4.Simplify the ratio 36 : 108
Answer: 1 : 3
- HCF of 36 and 108 is 36
- Divide both parts by 36
5.Simplify the ratio 27 : 6
Answer: 9 : 2
- HCF of 27 and 6 is 3
- Divide both parts by 3
6.Simplify the ratio 24 : 4
Answer: 6 : 1
- HCF of 24 and 4 is 4
- Divide both parts by 4
Part B: Divide in a ratio
7.Divide $20 in the ratio 1 : 3.
Answer: $5 and $15
- Total parts: 1 + 3 = 4
- One part: 20 ÷ 4 = 5
- 1 × 5 = 5 and 3 × 5 = 15
8.Divide $48 in the ratio 5 : 3.
Answer: $30 and $18
- Total parts: 5 + 3 = 8
- One part: 48 ÷ 8 = 6
- 5 × 6 = 30 and 3 × 6 = 18
9.Divide $24 in the ratio 1 : 3.
Answer: $6 and $18
- Total parts: 1 + 3 = 4
- One part: 24 ÷ 4 = 6
- 1 × 6 = 6 and 3 × 6 = 18
10.Divide $20 in the ratio 1 : 4.
Answer: $4 and $16
- Total parts: 1 + 4 = 5
- One part: 20 ÷ 5 = 4
- 1 × 4 = 4 and 4 × 4 = 16
11.Divide $16 in the ratio 2 : 2.
Answer: $8 and $8
- Total parts: 2 + 2 = 4
- One part: 16 ÷ 4 = 4
- 2 × 4 = 8 and 2 × 4 = 8
12.Divide $20 in the ratio 5 : 5.
Answer: $10 and $10
- Total parts: 5 + 5 = 10
- One part: 20 ÷ 10 = 2
- 5 × 2 = 10 and 5 × 2 = 10
Marking tips
- Give credit for correct method even when the final answer slips — the working shows where the thinking went right.
- For open-ended tasks, use the success criteria as a checklist rather than looking for one "right" answer.
- Celebrate what went well first, then pick one thing to work on next.