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Fractions Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 9: Fractions · Set 71 · 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 1/3 of 27? (a) 9 (b) 10 (c) 18 (d) 8
  2. 2.Which fraction is greater: 5/7 or 9/11? (a) They are equal (b) 5/7 (c) 9/11
  3. 3.Which fraction is greater: 7/10 or 4/5? (a) 7/10 (b) 4/5 (c) They are equal
  4. 4.1/2 + 1/3 = ? (a) 1 (b) 2/5 (c) 2/3 (d) 5/6
  5. 5.What is 4/9 of 72? (a) 40 (b) 33 (c) 8 (d) 32
  6. 6.1/3 + 1/4 = ? (a) 2/7 (b) 1/2 (c) 7/12 (d) 2/3
  7. 7.1/6 + 4/5 = ? (a) 29/30 (b) 1 (c) 14/15 (d) 5/11
  8. 8.What is 3/5 of 55? (a) 44 (b) 33 (c) 22 (d) 11
  9. 9.Which fraction is greater: 2/7 or 2/3? (a) 2/7 (b) 2/3 (c) They are equal
  10. 10.1/5 + 2/7 = ? (a) 1/4 (b) 18/35 (c) 17/35 (d) 16/35
  11. 11.2/4 + 1/9 = ? (a) 7/12 (b) 23/36 (c) 11/18 (d) 3/13
  12. 12.1/4 + 3/4 = ? (a) 1 (b) 5/4 (c) 3/4 (d) 1/2
  13. 13.What is 1/4 of 16? (a) 8 (b) 12 (c) 4 (d) 5
  14. 14.Which fraction is greater: 2/11 or 1/10? (a) They are equal (b) 2/11 (c) 1/10
  15. 15.2/4 + 6/8 = ? (a) 11/8 (b) 9/8 (c) 5/4 (d) 2/3
  16. 16.Which fraction is greater: 1/4 or 1/8? (a) 1/8 (b) 1/4 (c) They are equal
  17. 17.What is 4/9 of 81? (a) 45 (b) 36 (c) 9 (d) 37
  18. 18.What is 1/8 of 24? (a) 4 (b) 6 (c) 3 (d) 21
  19. 19.2/8 + 3/4 = ? (a) 5/12 (b) 7/8 (c) 1 (d) 9/8
  20. 20.1/2 + 1/8 = ? (a) 1/5 (b) 1/2 (c) 5/8 (d) 3/4
  21. 21.What is 1/3 of 15? (a) 10 (b) 6 (c) 4 (d) 5
  22. 22.3/4 + 2/3 = ? (a) 3/2 (b) 4/3 (c) 5/7 (d) 17/12
  23. 23.1/4 + 2/3 = ? (a) 3/7 (b) 11/12 (c) 1 (d) 5/6
  24. 24.2/5 + 2/3 = ? (a) 16/15 (b) 1/2 (c) 1 (d) 17/15
  25. 25.Which fraction is greater: 1/7 or 9/10? (a) They are equal (b) 9/10 (c) 1/7
  26. 26.What is 3/4 of 44? (a) 44 (b) 11 (c) 33 (d) 34
  27. 27.5/6 + 4/6 = ? (a) 4/3 (b) 3/4 (c) 3/2 (d) 5/3
  28. 28.What is 1/8 of 40? (a) 6 (b) 10 (c) 35 (d) 5
  29. 29.2/3 + 3/6 = ? (a) 1 (b) 7/6 (c) 4/3 (d) 5/9
  30. 30.What is 1/8 of 80? (a) 20 (b) 70 (c) 10 (d) 11
  31. 31.5/6 + 2/8 = ? (a) 1/2 (b) 13/12 (c) 25/24 (d) 9/8
  32. 32.Which fraction is greater: 2/9 or 2/7? (a) 2/9 (b) 2/7 (c) They are equal
  33. 33.Which fraction is greater: 3/7 or 2/3? (a) 2/3 (b) 3/7 (c) They are equal
  34. 34.Which fraction is greater: 5/7 or 3/8? (a) 3/8 (b) 5/7 (c) They are equal
  35. 35.1/2 + 2/7 = ? (a) 5/7 (b) 6/7 (c) 1/3 (d) 11/14
  36. 36.Which fraction is greater: 7/10 or 2/5? (a) They are equal (b) 7/10 (c) 2/5
  37. 37.What is 1/3 of 12? (a) 3 (b) 5 (c) 4 (d) 8
  38. 38.Which fraction is greater: 3/4 or 3/5? (a) 3/4 (b) 3/5 (c) They are equal
  39. 39.Which fraction is greater: 1/5 or 4/7? (a) They are equal (b) 4/7 (c) 1/5
  40. 40.6/8 + 2/3 = ? (a) 35/24 (b) 8/11 (c) 17/12 (d) 11/8

Answer key

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

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