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Fractions Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 9: Fractions · Set 325 · 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 7/9 of 108? (a) 12 (b) 96 (c) 24 (d) 84
  2. 2.What is 1/6 of 72? (a) 12 (b) 13 (c) 24 (d) 60
  3. 3.2/6 + 2/3 = ? (a) 1 (b) 7/6 (c) 5/6 (d) 4/9
  4. 4.1/2 + 8/9 = ? (a) 9/11 (b) 13/9 (c) 4/3 (d) 25/18
  5. 5.Which fraction is greater: 1/3 or 3/10? (a) They are equal (b) 1/3 (c) 3/10
  6. 6.2/8 + 6/8 = ? (a) 7/8 (b) 1/2 (c) 9/8 (d) 1
  7. 7.Which fraction is greater: 3/5 or 5/7? (a) 5/7 (b) 3/5 (c) They are equal
  8. 8.3/8 + 1/3 = ? (a) 4/11 (b) 2/3 (c) 17/24 (d) 3/4
  9. 9.6/7 + 2/3 = ? (a) 31/21 (b) 32/21 (c) 4/5 (d) 11/7
  10. 10.Which fraction is greater: 2/3 or 2/5? (a) 2/3 (b) They are equal (c) 2/5
  11. 11.6/7 + 1/5 = ? (a) 38/35 (b) 7/12 (c) 36/35 (d) 37/35
  12. 12.What is 1/4 of 36? (a) 27 (b) 18 (c) 10 (d) 9
  13. 13.What is 1/3 of 21? (a) 6 (b) 7 (c) 14 (d) 8
  14. 14.What is 1/4 of 28? (a) 7 (b) 21 (c) 8 (d) 14
  15. 15.Which fraction is greater: 1/10 or 2/9? (a) They are equal (b) 1/10 (c) 2/9
  16. 16.3/8 + 1/2 = ? (a) 7/8 (b) 2/5 (c) 3/4 (d) 1
  17. 17.Which fraction is greater: 2/3 or 5/7? (a) 5/7 (b) They are equal (c) 2/3
  18. 18.1/3 + 3/9 = ? (a) 1/3 (b) 5/9 (c) 7/9 (d) 2/3
  19. 19.What is 5/9 of 63? (a) 42 (b) 28 (c) 35 (d) 7
  20. 20.Which fraction is greater: 1/4 or 5/7? (a) They are equal (b) 1/4 (c) 5/7
  21. 21.What is 1/4 of 40? (a) 20 (b) 30 (c) 11 (d) 10
  22. 22.What is 4/5 of 45? (a) 37 (b) 45 (c) 9 (d) 36
  23. 23.5/8 + 1/8 = ? (a) 5/8 (b) 7/8 (c) 3/4 (d) 3/8
  24. 24.1/3 + 2/3 = ? (a) 1 (b) 4/3 (c) 2/3 (d) 1/2
  25. 25.4/6 + 3/4 = ? (a) 3/2 (b) 7/10 (c) 17/12 (d) 4/3
  26. 26.3/4 + 2/5 = ? (a) 23/20 (b) 11/10 (c) 6/5 (d) 5/9
  27. 27.1/2 + 1/3 = ? (a) 1 (b) 2/3 (c) 5/6 (d) 2/5
  28. 28.Which fraction is greater: 5/7 or 1/3? (a) 1/3 (b) 5/7 (c) They are equal
  29. 29.Which fraction is greater: 4/11 or 1/5? (a) 4/11 (b) They are equal (c) 1/5
  30. 30.Which fraction is greater: 6/11 or 7/8? (a) 7/8 (b) They are equal (c) 6/11
  31. 31.Which fraction is greater: 1/3 or 5/8? (a) 1/3 (b) 5/8 (c) They are equal
  32. 32.Which fraction is greater: 3/7 or 2/3? (a) 2/3 (b) They are equal (c) 3/7
  33. 33.5/6 + 2/8 = ? (a) 1/2 (b) 9/8 (c) 25/24 (d) 13/12
  34. 34.5/9 + 5/9 = ? (a) 5/9 (b) 11/9 (c) 1 (d) 10/9
  35. 35.2/3 + 1/3 = ? (a) 4/3 (b) 1/2 (c) 1 (d) 2/3
  36. 36.Which fraction is greater: 2/5 or 5/11? (a) 2/5 (b) They are equal (c) 5/11
  37. 37.1/2 + 1/6 = ? (a) 1/2 (b) 2/3 (c) 5/6 (d) 1/4
  38. 38.3/4 + 2/8 = ? (a) 5/12 (b) 9/8 (c) 7/8 (d) 1
  39. 39.5/9 + 1/2 = ? (a) 1 (b) 10/9 (c) 6/11 (d) 19/18
  40. 40.What is 3/4 of 48? (a) 12 (b) 37 (c) 48 (d) 36

Answer key

  1. 84
  2. 12
  3. 1
  4. 25/18
  5. 1/3
  6. 1
  7. 5/7
  8. 17/24
  9. 32/21
  10. 2/3
  11. 37/35
  12. 9
  13. 7
  14. 7
  15. 2/9
  16. 7/8
  17. 5/7
  18. 2/3
  19. 35
  20. 5/7
  21. 10
  22. 36
  23. 3/4
  24. 1
  25. 17/12
  26. 23/20
  27. 5/6
  28. 5/7
  29. 4/11
  30. 7/8
  31. 5/8
  32. 2/3
  33. 13/12
  34. 10/9
  35. 1
  36. 5/11
  37. 2/3
  38. 1
  39. 19/18
  40. 36

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