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Fractions Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 9: Fractions · Set 800 · 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.Which fraction is greater: 7/11 or 5/8? (a) They are equal (b) 7/11 (c) 5/8
  2. 2.What is 1/2 of 20? (a) 20 (b) 10 (c) 11 (d) 9
  3. 3.Which fraction is greater: 3/8 or 3/10? (a) 3/8 (b) 3/10 (c) They are equal
  4. 4.1/6 + 1/4 = ? (a) 5/12 (b) 1/3 (c) 1/5 (d) 1/2
  5. 5.Which fraction is greater: 3/4 or 2/3? (a) 3/4 (b) They are equal (c) 2/3
  6. 6.What is 1/8 of 80? (a) 70 (b) 11 (c) 10 (d) 20
  7. 7.Which fraction is greater: 6/7 or 8/9? (a) They are equal (b) 8/9 (c) 6/7
  8. 8.What is 3/5 of 10? (a) 2 (b) 4 (c) 6 (d) 8
  9. 9.1/2 + 1/6 = ? (a) 2/3 (b) 1/4 (c) 5/6 (d) 1/2
  10. 10.What is 5/9 of 45? (a) 30 (b) 20 (c) 5 (d) 25
  11. 11.Which fraction is greater: 2/3 or 3/5? (a) 3/5 (b) They are equal (c) 2/3
  12. 12.What is 4/5 of 45? (a) 36 (b) 37 (c) 45 (d) 9
  13. 13.What is 3/5 of 20? (a) 4 (b) 16 (c) 8 (d) 12
  14. 14.2/3 + 1/2 = ? (a) 7/6 (b) 3/5 (c) 1 (d) 4/3
  15. 15.Which fraction is greater: 5/7 or 3/4? (a) 3/4 (b) 5/7 (c) They are equal
  16. 16.1/5 + 3/6 = ? (a) 7/10 (b) 11/15 (c) 4/11 (d) 2/3
  17. 17.Which fraction is greater: 10/11 or 5/8? (a) 10/11 (b) 5/8 (c) They are equal
  18. 18.Which fraction is greater: 3/8 or 2/5? (a) 2/5 (b) They are equal (c) 3/8
  19. 19.What is 1/2 of 12? (a) 7 (b) 12 (c) 5 (d) 6
  20. 20.What is 1/9 of 18? (a) 2 (b) 4 (c) 16 (d) 3
  21. 21.Which fraction is greater: 1/3 or 9/10? (a) They are equal (b) 9/10 (c) 1/3
  22. 22.Which fraction is greater: 5/6 or 1/4? (a) 1/4 (b) They are equal (c) 5/6
  23. 23.1/2 + 3/7 = ? (a) 1 (b) 6/7 (c) 4/9 (d) 13/14
  24. 24.7/8 + 1/2 = ? (a) 5/4 (b) 4/5 (c) 3/2 (d) 11/8
  25. 25.2/4 + 2/5 = ? (a) 17/20 (b) 19/20 (c) 9/10 (d) 4/9
  26. 26.3/4 + 3/6 = ? (a) 5/4 (b) 7/6 (c) 4/3 (d) 3/5
  27. 27.What is 1/3 of 21? (a) 6 (b) 14 (c) 7 (d) 8
  28. 28.Which fraction is greater: 1/4 or 2/3? (a) 1/4 (b) They are equal (c) 2/3
  29. 29.Which fraction is greater: 3/5 or 1/10? (a) They are equal (b) 1/10 (c) 3/5
  30. 30.5/7 + 1/5 = ? (a) 33/35 (b) 31/35 (c) 1/2 (d) 32/35
  31. 31.5/6 + 5/6 = ? (a) 5/3 (b) 11/6 (c) 5/6 (d) 3/2
  32. 32.3/4 + 1/3 = ? (a) 1 (b) 7/6 (c) 4/7 (d) 13/12
  33. 33.What is 2/9 of 81? (a) 9 (b) 18 (c) 27 (d) 63
  34. 34.Which fraction is greater: 7/11 or 2/3? (a) They are equal (b) 2/3 (c) 7/11
  35. 35.1/3 + 3/5 = ? (a) 1 (b) 13/15 (c) 14/15 (d) 1/2
  36. 36.What is 2/3 of 15? (a) 15 (b) 5 (c) 11 (d) 10
  37. 37.Which fraction is greater: 1/12 or 7/8? (a) They are equal (b) 1/12 (c) 7/8
  38. 38.What is 1/2 of 24? (a) 11 (b) 24 (c) 12 (d) 13
  39. 39.2/7 + 2/7 = ? (a) 5/7 (b) 4/7 (c) 3/7 (d) 2/7
  40. 40.Which fraction is greater: 1/3 or 7/9? (a) 7/9 (b) They are equal (c) 1/3

Answer key

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

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