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Fractions Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 9: Fractions · Set 159 · 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 2/3 of 12? (a) 8 (b) 4 (c) 9 (d) 12
  2. 2.What is 5/7 of 21? (a) 3 (b) 15 (c) 18 (d) 6
  3. 3.1/3 + 3/5 = ? (a) 1 (b) 14/15 (c) 1/2 (d) 13/15
  4. 4.2/6 + 3/9 = ? (a) 11/18 (b) 1/3 (c) 2/3 (d) 13/18
  5. 5.Which fraction is greater: 3/4 or 1/10? (a) They are equal (b) 1/10 (c) 3/4
  6. 6.Which fraction is greater: 2/11 or 1/4? (a) 2/11 (b) They are equal (c) 1/4
  7. 7.Which fraction is greater: 7/11 or 3/5? (a) They are equal (b) 3/5 (c) 7/11
  8. 8.Which fraction is greater: 5/6 or 4/11? (a) 4/11 (b) They are equal (c) 5/6
  9. 9.What is 1/2 of 16? (a) 16 (b) 8 (c) 7 (d) 9
  10. 10.Which fraction is greater: 1/12 or 2/7? (a) They are equal (b) 1/12 (c) 2/7
  11. 11.1/3 + 1/4 = ? (a) 2/7 (b) 2/3 (c) 7/12 (d) 1/2
  12. 12.1/5 + 2/6 = ? (a) 1/2 (b) 17/30 (c) 8/15 (d) 3/11
  13. 13.Which fraction is greater: 3/11 or 1/4? (a) 3/11 (b) They are equal (c) 1/4
  14. 14.4/5 + 1/3 = ? (a) 6/5 (b) 17/15 (c) 16/15 (d) 5/8
  15. 15.1/4 + 1/5 = ? (a) 1/2 (b) 9/20 (c) 2/5 (d) 2/9
  16. 16.1/3 + 3/4 = ? (a) 1 (b) 4/7 (c) 13/12 (d) 7/6
  17. 17.What is 1/2 of 22? (a) 12 (b) 22 (c) 10 (d) 11
  18. 18.Which fraction is greater: 3/10 or 4/5? (a) 3/10 (b) They are equal (c) 4/5
  19. 19.2/3 + 1/2 = ? (a) 3/5 (b) 4/3 (c) 1 (d) 7/6
  20. 20.1/4 + 4/8 = ? (a) 5/8 (b) 3/4 (c) 5/12 (d) 7/8
  21. 21.Which fraction is greater: 1/3 or 4/5? (a) They are equal (b) 4/5 (c) 1/3
  22. 22.What is 5/6 of 72? (a) 12 (b) 60 (c) 61 (d) 72
  23. 23.What is 8/9 of 63? (a) 7 (b) 57 (c) 56 (d) 63
  24. 24.1/4 + 1/9 = ? (a) 2/13 (b) 7/18 (c) 1/3 (d) 13/36
  25. 25.2/3 + 4/5 = ? (a) 3/4 (b) 22/15 (c) 23/15 (d) 7/5
  26. 26.Which fraction is greater: 1/10 or 3/5? (a) They are equal (b) 3/5 (c) 1/10
  27. 27.1/9 + 2/3 = ? (a) 8/9 (b) 2/3 (c) 7/9 (d) 1/4
  28. 28.What is 2/3 of 36? (a) 36 (b) 25 (c) 12 (d) 24
  29. 29.7/9 + 3/6 = ? (a) 23/18 (b) 4/3 (c) 2/3 (d) 11/9
  30. 30.Which fraction is greater: 1/9 or 3/4? (a) 3/4 (b) They are equal (c) 1/9
  31. 31.Which fraction is greater: 3/5 or 7/9? (a) 7/9 (b) They are equal (c) 3/5
  32. 32.Which fraction is greater: 2/7 or 1/3? (a) They are equal (b) 2/7 (c) 1/3
  33. 33.Which fraction is greater: 2/3 or 2/5? (a) 2/3 (b) They are equal (c) 2/5
  34. 34.1/2 + 1/2 = ? (a) 2 (b) 1/2 (c) 1 (d) 3/2
  35. 35.1/5 + 3/4 = ? (a) 4/9 (b) 9/10 (c) 1 (d) 19/20
  36. 36.Which fraction is greater: 4/7 or 2/3? (a) They are equal (b) 4/7 (c) 2/3
  37. 37.Which fraction is greater: 4/9 or 5/6? (a) 4/9 (b) 5/6 (c) They are equal
  38. 38.Which fraction is greater: 2/11 or 1/8? (a) 2/11 (b) They are equal (c) 1/8
  39. 39.Which fraction is greater: 3/5 or 1/6? (a) 1/6 (b) 3/5 (c) They are equal
  40. 40.Which fraction is greater: 6/7 or 3/10? (a) 3/10 (b) 6/7 (c) They are equal

Answer key

  1. 8
  2. 15
  3. 14/15
  4. 2/3
  5. 3/4
  6. 1/4
  7. 7/11
  8. 5/6
  9. 8
  10. 2/7
  11. 7/12
  12. 8/15
  13. 3/11
  14. 17/15
  15. 9/20
  16. 13/12
  17. 11
  18. 4/5
  19. 7/6
  20. 3/4
  21. 4/5
  22. 60
  23. 56
  24. 13/36
  25. 22/15
  26. 3/5
  27. 7/9
  28. 24
  29. 23/18
  30. 3/4
  31. 7/9
  32. 1/3
  33. 2/3
  34. 1
  35. 19/20
  36. 2/3
  37. 5/6
  38. 2/11
  39. 3/5
  40. 6/7

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