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Fractions Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 9: Fractions · Set 671 · 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 3/5 of 15? (a) 12 (b) 9 (c) 6 (d) 3
  2. 2.What is 1/3 of 21? (a) 7 (b) 8 (c) 6 (d) 14
  3. 3.Which fraction is greater: 4/9 or 1/4? (a) 1/4 (b) 4/9 (c) They are equal
  4. 4.5/8 + 7/8 = ? (a) 3/2 (b) 11/8 (c) 3/4 (d) 13/8
  5. 5.2/3 + 2/3 = ? (a) 1 (b) 5/3 (c) 2/3 (d) 4/3
  6. 6.Which fraction is greater: 6/11 or 1/5? (a) 6/11 (b) 1/5 (c) They are equal
  7. 7.2/5 + 2/6 = ? (a) 4/11 (b) 23/30 (c) 7/10 (d) 11/15
  8. 8.1/2 + 6/8 = ? (a) 5/4 (b) 11/8 (c) 9/8 (d) 7/10
  9. 9.What is 1/8 of 72? (a) 9 (b) 18 (c) 10 (d) 63
  10. 10.2/7 + 4/5 = ? (a) 1/2 (b) 38/35 (c) 39/35 (d) 37/35
  11. 11.Which fraction is greater: 1/3 or 7/12? (a) 7/12 (b) They are equal (c) 1/3
  12. 12.Which fraction is greater: 1/4 or 2/5? (a) 2/5 (b) 1/4 (c) They are equal
  13. 13.Which fraction is greater: 6/7 or 2/3? (a) They are equal (b) 2/3 (c) 6/7
  14. 14.What is 1/2 of 10? (a) 6 (b) 5 (c) 4 (d) 10
  15. 15.1/2 + 1/2 = ? (a) 3/2 (b) 1 (c) 1/2 (d) 2
  16. 16.2/3 + 3/7 = ? (a) 22/21 (b) 8/7 (c) 23/21 (d) 1/2
  17. 17.What is 1/3 of 27? (a) 9 (b) 8 (c) 10 (d) 18
  18. 18.What is 1/7 of 70? (a) 60 (b) 20 (c) 10 (d) 11
  19. 19.3/4 + 1/3 = ? (a) 4/7 (b) 13/12 (c) 1 (d) 7/6
  20. 20.Which fraction is greater: 5/11 or 3/4? (a) They are equal (b) 3/4 (c) 5/11
  21. 21.What is 5/6 of 12? (a) 12 (b) 11 (c) 2 (d) 10
  22. 22.4/6 + 1/4 = ? (a) 1 (b) 11/12 (c) 5/6 (d) 1/2
  23. 23.2/4 + 1/8 = ? (a) 1/4 (b) 1/2 (c) 3/4 (d) 5/8
  24. 24.4/7 + 1/5 = ? (a) 26/35 (b) 27/35 (c) 5/12 (d) 4/5
  25. 25.Which fraction is greater: 3/10 or 2/9? (a) 3/10 (b) They are equal (c) 2/9
  26. 26.What is 1/3 of 18? (a) 7 (b) 6 (c) 5 (d) 12
  27. 27.2/7 + 1/2 = ? (a) 5/7 (b) 1/3 (c) 11/14 (d) 6/7
  28. 28.What is 1/2 of 6? (a) 6 (b) 3 (c) 4 (d) 2
  29. 29.Which fraction is greater: 1/6 or 1/8? (a) 1/8 (b) 1/6 (c) They are equal
  30. 30.Which fraction is greater: 3/10 or 1/4? (a) 1/4 (b) 3/10 (c) They are equal
  31. 31.Which fraction is greater: 2/7 or 9/10? (a) 2/7 (b) They are equal (c) 9/10
  32. 32.What is 1/4 of 28? (a) 21 (b) 8 (c) 14 (d) 7
  33. 33.What is 2/3 of 27? (a) 19 (b) 27 (c) 9 (d) 18
  34. 34.What is 1/4 of 16? (a) 8 (b) 12 (c) 4 (d) 5
  35. 35.What is 1/9 of 36? (a) 32 (b) 8 (c) 5 (d) 4
  36. 36.What is 3/5 of 25? (a) 20 (b) 10 (c) 5 (d) 15
  37. 37.What is 2/7 of 63? (a) 18 (b) 27 (c) 9 (d) 45
  38. 38.1/2 + 1/4 = ? (a) 1/2 (b) 3/4 (c) 1 (d) 1/3
  39. 39.Which fraction is greater: 1/5 or 5/9? (a) They are equal (b) 1/5 (c) 5/9
  40. 40.What is 6/7 of 77? (a) 11 (b) 66 (c) 67 (d) 77

Answer key

  1. 9
  2. 7
  3. 4/9
  4. 3/2
  5. 4/3
  6. 6/11
  7. 11/15
  8. 5/4
  9. 9
  10. 38/35
  11. 7/12
  12. 2/5
  13. 6/7
  14. 5
  15. 1
  16. 23/21
  17. 9
  18. 10
  19. 13/12
  20. 3/4
  21. 10
  22. 11/12
  23. 5/8
  24. 27/35
  25. 3/10
  26. 6
  27. 11/14
  28. 3
  29. 1/6
  30. 3/10
  31. 9/10
  32. 7
  33. 18
  34. 4
  35. 4
  36. 15
  37. 18
  38. 3/4
  39. 5/9
  40. 66

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