← Back

Opens your browser’s print dialog — choose “Save as PDF” as the destination.

Celeste International School

Grade 6 · Worksheet

Ratio and proportion

Simplifying ratios

Name: ______________________________Date: ______________Score: ______ / 20
  1. 1.

    Simplify 25 : 40. What is the FIRST number of the simplified ratio?

  2. 2.

    A model is 3 cm high and the real object is 120 cm high. Write model : real in simplest form. What is the SECOND number?

  3. 3.

    A club has 6 women and 24 men. Write women : men in simplest form. What is the second number?

  4. 4.

    The ratio 6x : 12x can be simplified to 1 : 2.

    True False
  5. 5.

    Write the ratio 12 : 54 in its simplest form.

    1. A12 : 9
    2. B2 : 9
    3. C9 : 2
  6. 6.

    A model is 5 cm high and the real object is 170 cm high. Write model : real in simplest form. What is the SECOND number?

  7. 7.

    A club has 8 women and 16 men. Write women : men in simplest form. What is the second number?

  8. 8.

    A recipe uses 126 g of flour and 14 g of margarine. What is flour : margarine in simplest form?

    1. A1 : 9
    2. B9 : 1
    3. C126 : 1
  9. 9.

    If a bag has 2 green counters and 4 blue ones, then blue : green is 2 : 4.

    True False
  10. 10.

    Which of these is written in its simplest form?

    1. A6 : 16
    2. B9 : 24
    3. C3 : 8
  11. 11.

    Simplify 25 litres : 10 litres.

    1. A5 litres : 2
    2. B2 : 5
    3. C5 : 2
  12. 12.

    A recipe uses 405 g of flour and 45 g of margarine. What is flour : margarine in simplest form?

    1. A1 : 9
    2. B405 : 1
    3. C9 : 1
  13. 13.

    A necklace has 6 red beads and 2 yellow beads. What is red : yellow in its simplest form?

    1. A3 : 1
    2. B1 : 3
    3. C6 : 2
  14. 14.

    Is 18 : 27 in its simplest form as 2 : 3 or as 1 : 1.5?

    1. A2 : 3
    2. B1 : 1.5
    3. Cboth are equally simple
  15. 15.

    Nuts are sold with Brazil nuts and walnuts in the ratio 2 : 3. Out of every 5 bags, how many are Brazil nuts?

  16. 16.

    A recipe uses 126 g of flour and 18 g of margarine. What is flour : margarine in simplest form?

    1. A7 : 1
    2. B1 : 7
    3. C126 : 1
  17. 17.

    A necklace has 6 red beads and 3 yellow beads. What is red : yellow in its simplest form?

    1. A1 : 2
    2. B2 : 1
    3. C6 : 3
  18. 18.

    Is 6 : 9 in its simplest form as 2 : 3 or as 1 : 1.5?

    1. A1 : 1.5
    2. B2 : 3
    3. Cboth are equally simple
  19. 19.

    Nuts are sold with Brazil nuts and walnuts in the ratio 6 : 7. Out of every 13 bags, how many are Brazil nuts?

  20. 20.

    The ratio 5x : 10x can be simplified to 1 : 2.

    True False
Celeste International School

Answer key

Ratio and proportion — Simplifying ratios

  1. 1.5
  2. 2.40
  3. 3.4
  4. 4.True
  5. 5.B. 2 : 9
  6. 6.34
  7. 7.2
  8. 8.B. 9 : 1
  9. 9.False
  10. 10.C. 3 : 8
  11. 11.C. 5 : 2
  12. 12.C. 9 : 1
  13. 13.A. 3 : 1
  14. 14.A. 2 : 3
  15. 15.2
  16. 16.A. 7 : 1
  17. 17.B. 2 : 1
  18. 18.B. 2 : 3
  19. 19.6
  20. 20.True