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Year 6 Maths — Ratio and proportion

Write and simplify ratios, and use them to share amounts and scale recipes.

Name: ________________________

  1. 1.The ratio of boys to girls in a class is 5:4. There are 20 boys. How many girls are there?

  2. 2.Simplify the ratio 10:15. Write it like 4:5.

  3. 3.Are 2:3 and 8:12 in proportion?

    • a) Only if you swap them round
    • b) No
    • c) There is not enough information
    • d) Yes

  4. 4.These ratios are all written as first:second. Put them in order, smallest first.

    • 1:2
    • 5:4
    • 2:3
    • 1:4
    • 3:4

  5. 5.Share 40 sweets between two children in the ratio 3:5. How many does the first child get?

  6. 6.Match each ratio to its simplest form.

    • 8:12
    • 10:4
    • 9:27
    • 16:20
    • 18:24
    • 2:3
    • 3:4
    • 5:2
    • 4:5
    • 1:3

  7. 7.If 3 pens cost £45, what do 7 pens cost? Give just the number.

  8. 8.Which ratio is equivalent to 3:4?

    • a) 6:8
    • b) 9:16
    • c) 4:3
    • d) 7:8

Answer key — Year 6 Maths — Ratio and proportion

  1. 1. 16
  2. 2. 2:3
  3. 3. d) Yes
  4. 4. 1. 1:4 2. 1:2 3. 2:3 4. 3:4 5. 5:4
  5. 5. 15
  6. 6. 8:12 → 2:3; 10:4 → 5:2; 9:27 → 1:3; 16:20 → 4:5; 18:24 → 3:4
  7. 7. 105
  8. 8. a) 6:8