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Fractions Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 9: Fractions · Set 675 · 40 questions
TalentJR

How to solve it (Cross-multiply to compare): Compare a/b and c/d: work out a × d and c × b — the bigger product goes with the bigger fraction. Add: make the bottoms the same (use the LCM), add the tops, then simplify. Fraction of a number: divide by the bottom, multiply by the top (3/4 of 48 = 48 ÷ 4 × 3 = 36).

NameDateTime takenScore ___ / 40
  1. 1.What is 1/2 of 20? (a) 10 (b) 9 (c) 20 (d) 11
  2. 2.2/4 + 5/8 = ? (a) 7/12 (b) 1 (c) 9/8 (d) 5/4
  3. 3.2/8 + 1/3 = ? (a) 5/8 (b) 7/12 (c) 13/24 (d) 3/11
  4. 4.What is 5/9 of 36? (a) 20 (b) 4 (c) 16 (d) 24
  5. 5.What is 1/4 of 40? (a) 30 (b) 11 (c) 10 (d) 20
  6. 6.1/2 + 1/6 = ? (a) 5/6 (b) 2/3 (c) 1/4 (d) 1/2
  7. 7.Which fraction is greater: 7/8 or 2/7? (a) 2/7 (b) They are equal (c) 7/8
  8. 8.1/2 + 2/4 = ? (a) 3/4 (b) 5/4 (c) 1 (d) 1/2
  9. 9.What is 1/2 of 10? (a) 6 (b) 4 (c) 10 (d) 5
  10. 10.1/2 + 1/3 = ? (a) 2/5 (b) 1 (c) 5/6 (d) 2/3
  11. 11.What is 2/3 of 36? (a) 25 (b) 36 (c) 12 (d) 24
  12. 12.1/3 + 1/2 = ? (a) 2/3 (b) 1 (c) 5/6 (d) 2/5
  13. 13.1/3 + 3/5 = ? (a) 1 (b) 14/15 (c) 1/2 (d) 13/15
  14. 14.What is 8/9 of 81? (a) 9 (b) 72 (c) 73 (d) 81
  15. 15.Which fraction is greater: 1/5 or 1/3? (a) 1/3 (b) 1/5 (c) They are equal
  16. 16.What is 1/4 of 8? (a) 4 (b) 2 (c) 6 (d) 3
  17. 17.Which fraction is greater: 3/4 or 4/5? (a) 3/4 (b) They are equal (c) 4/5
  18. 18.3/6 + 1/2 = ? (a) 7/6 (b) 1 (c) 5/6 (d) 1/2
  19. 19.Which fraction is greater: 5/12 or 1/7? (a) 5/12 (b) 1/7 (c) They are equal
  20. 20.1/6 + 1/2 = ? (a) 2/3 (b) 1/2 (c) 1/4 (d) 5/6
  21. 21.1/9 + 5/6 = ? (a) 8/9 (b) 17/18 (c) 1 (d) 2/5
  22. 22.What is 1/4 of 12? (a) 6 (b) 4 (c) 3 (d) 9
  23. 23.What is 3/5 of 45? (a) 18 (b) 27 (c) 36 (d) 9
  24. 24.2/3 + 2/5 = ? (a) 17/15 (b) 16/15 (c) 1 (d) 1/2
  25. 25.What is 1/5 of 60? (a) 24 (b) 48 (c) 13 (d) 12
  26. 26.2/6 + 1/2 = ? (a) 3/8 (b) 2/3 (c) 1 (d) 5/6
  27. 27.1/2 + 1/7 = ? (a) 4/7 (b) 9/14 (c) 5/7 (d) 2/9
  28. 28.What is 1/9 of 90? (a) 20 (b) 80 (c) 10 (d) 11
  29. 29.What is 1/7 of 63? (a) 18 (b) 54 (c) 10 (d) 9
  30. 30.2/3 + 6/9 = ? (a) 13/9 (b) 4/3 (c) 11/9 (d) 2/3
  31. 31.4/9 + 1/2 = ? (a) 5/11 (b) 8/9 (c) 1 (d) 17/18
  32. 32.4/6 + 1/3 = ? (a) 5/9 (b) 5/6 (c) 7/6 (d) 1
  33. 33.Which fraction is greater: 3/4 or 2/3? (a) 3/4 (b) They are equal (c) 2/3
  34. 34.Which fraction is greater: 1/5 or 10/11? (a) 10/11 (b) They are equal (c) 1/5
  35. 35.4/5 + 5/7 = ? (a) 52/35 (b) 54/35 (c) 53/35 (d) 3/4
  36. 36.What is 1/5 of 20? (a) 5 (b) 4 (c) 16 (d) 8
  37. 37.Which fraction is greater: 2/3 or 3/5? (a) They are equal (b) 3/5 (c) 2/3
  38. 38.Which fraction is greater: 1/6 or 1/8? (a) 1/8 (b) They are equal (c) 1/6
  39. 39.What is 1/8 of 80? (a) 70 (b) 10 (c) 20 (d) 11
  40. 40.3/5 + 3/5 = ? (a) 6/5 (b) 1 (c) 7/5 (d) 3/5

Answer key

  1. 10
  2. 9/8
  3. 7/12
  4. 20
  5. 10
  6. 2/3
  7. 7/8
  8. 1
  9. 5
  10. 5/6
  11. 24
  12. 5/6
  13. 14/15
  14. 72
  15. 1/3
  16. 2
  17. 4/5
  18. 1
  19. 5/12
  20. 2/3
  21. 17/18
  22. 3
  23. 27
  24. 16/15
  25. 12
  26. 5/6
  27. 9/14
  28. 10
  29. 9
  30. 4/3
  31. 17/18
  32. 1
  33. 3/4
  34. 10/11
  35. 53/35
  36. 4
  37. 2/3
  38. 1/6
  39. 10
  40. 6/5

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