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Fractions Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 9: Fractions · Set 431 · 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. 1.2/4 + 5/6 = ? (a) 4/3 (b) 7/10 (c) 17/12 (d) 5/4
  2. 2.What is 1/7 of 21? (a) 4 (b) 3 (c) 6 (d) 18
  3. 3.What is 1/4 of 12? (a) 9 (b) 4 (c) 3 (d) 6
  4. 4.Which fraction is greater: 1/4 or 10/11? (a) They are equal (b) 1/4 (c) 10/11
  5. 5.1/3 + 1/3 = ? (a) 2/3 (b) 1/3 (c) 4/3 (d) 1
  6. 6.What is 1/2 of 20? (a) 10 (b) 9 (c) 11 (d) 20
  7. 7.1/2 + 2/3 = ? (a) 7/6 (b) 3/5 (c) 4/3 (d) 1
  8. 8.1/5 + 1/2 = ? (a) 2/7 (b) 4/5 (c) 3/5 (d) 7/10
  9. 9.Which fraction is greater: 3/8 or 1/11? (a) They are equal (b) 3/8 (c) 1/11
  10. 10.Which fraction is greater: 7/12 or 2/3? (a) They are equal (b) 2/3 (c) 7/12
  11. 11.Which fraction is greater: 2/3 or 1/4? (a) 1/4 (b) They are equal (c) 2/3
  12. 12.What is 5/9 of 45? (a) 25 (b) 5 (c) 30 (d) 20
  13. 13.What is 8/9 of 27? (a) 25 (b) 3 (c) 27 (d) 24
  14. 14.What is 6/7 of 49? (a) 42 (b) 49 (c) 7 (d) 43
  15. 15.5/8 + 2/3 = ? (a) 31/24 (b) 4/3 (c) 5/4 (d) 7/11
  16. 16.3/7 + 1/2 = ? (a) 1 (b) 6/7 (c) 4/9 (d) 13/14
  17. 17.Which fraction is greater: 1/5 or 3/7? (a) 1/5 (b) They are equal (c) 3/7
  18. 18.Which fraction is greater: 3/5 or 10/11? (a) They are equal (b) 10/11 (c) 3/5
  19. 19.What is 2/3 of 30? (a) 20 (b) 30 (c) 10 (d) 21
  20. 20.What is 1/6 of 54? (a) 10 (b) 18 (c) 45 (d) 9
  21. 21.Which fraction is greater: 1/3 or 9/10? (a) 1/3 (b) They are equal (c) 9/10
  22. 22.What is 4/5 of 55? (a) 45 (b) 11 (c) 44 (d) 55
  23. 23.5/6 + 3/6 = ? (a) 7/6 (b) 3/2 (c) 2/3 (d) 4/3
  24. 24.2/4 + 2/9 = ? (a) 25/36 (b) 3/4 (c) 4/13 (d) 13/18
  25. 25.What is 1/2 of 24? (a) 24 (b) 12 (c) 13 (d) 11
  26. 26.Which fraction is greater: 5/11 or 3/8? (a) They are equal (b) 3/8 (c) 5/11
  27. 27.Which fraction is greater: 1/3 or 4/11? (a) 4/11 (b) They are equal (c) 1/3
  28. 28.4/6 + 4/9 = ? (a) 8/15 (b) 10/9 (c) 19/18 (d) 7/6
  29. 29.What is 4/9 of 18? (a) 9 (b) 8 (c) 10 (d) 2
  30. 30.Which fraction is greater: 3/7 or 2/5? (a) 2/5 (b) 3/7 (c) They are equal
  31. 31.What is 2/3 of 6? (a) 5 (b) 4 (c) 6 (d) 2
  32. 32.Which fraction is greater: 3/4 or 3/8? (a) 3/4 (b) They are equal (c) 3/8
  33. 33.What is 4/9 of 90? (a) 50 (b) 41 (c) 40 (d) 10
  34. 34.Which fraction is greater: 2/3 or 4/11? (a) 4/11 (b) 2/3 (c) They are equal
  35. 35.Which fraction is greater: 1/3 or 3/11? (a) They are equal (b) 3/11 (c) 1/3
  36. 36.2/3 + 3/4 = ? (a) 5/7 (b) 17/12 (c) 3/2 (d) 4/3
  37. 37.Which fraction is greater: 1/3 or 5/6? (a) 5/6 (b) 1/3 (c) They are equal
  38. 38.Which fraction is greater: 1/9 or 1/4? (a) 1/4 (b) They are equal (c) 1/9
  39. 39.What is 1/5 of 25? (a) 10 (b) 20 (c) 6 (d) 5
  40. 40.What is 1/4 of 36? (a) 18 (b) 27 (c) 10 (d) 9

Answer key

  1. 4/3
  2. 3
  3. 3
  4. 10/11
  5. 2/3
  6. 10
  7. 7/6
  8. 7/10
  9. 3/8
  10. 2/3
  11. 2/3
  12. 25
  13. 24
  14. 42
  15. 31/24
  16. 13/14
  17. 3/7
  18. 10/11
  19. 20
  20. 9
  21. 9/10
  22. 44
  23. 4/3
  24. 13/18
  25. 12
  26. 5/11
  27. 4/11
  28. 10/9
  29. 8
  30. 3/7
  31. 4
  32. 3/4
  33. 40
  34. 2/3
  35. 1/3
  36. 17/12
  37. 5/6
  38. 1/4
  39. 5
  40. 9

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