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Fractions Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 9: Fractions · Set 124 · 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 1/2 of 18? (a) 18 (b) 10 (c) 8 (d) 9
  2. 2.What is 4/5 of 10? (a) 9 (b) 8 (c) 2 (d) 10
  3. 3.1/4 + 3/5 = ? (a) 4/9 (b) 9/10 (c) 17/20 (d) 4/5
  4. 4.3/5 + 2/4 = ? (a) 5/9 (b) 11/10 (c) 23/20 (d) 21/20
  5. 5.What is 1/7 of 14? (a) 4 (b) 12 (c) 3 (d) 2
  6. 6.Which fraction is greater: 1/5 or 5/6? (a) 5/6 (b) 1/5 (c) They are equal
  7. 7.Which fraction is greater: 1/3 or 3/4? (a) 3/4 (b) They are equal (c) 1/3
  8. 8.What is 1/7 of 56? (a) 48 (b) 9 (c) 16 (d) 8
  9. 9.What is 4/9 of 90? (a) 50 (b) 10 (c) 41 (d) 40
  10. 10.Which fraction is greater: 3/10 or 8/9? (a) 8/9 (b) 3/10 (c) They are equal
  11. 11.1/5 + 1/3 = ? (a) 1/4 (b) 3/5 (c) 7/15 (d) 8/15
  12. 12.Which fraction is greater: 1/3 or 3/5? (a) They are equal (b) 1/3 (c) 3/5
  13. 13.1/2 + 8/9 = ? (a) 25/18 (b) 4/3 (c) 13/9 (d) 9/11
  14. 14.Which fraction is greater: 5/6 or 3/5? (a) They are equal (b) 5/6 (c) 3/5
  15. 15.Which fraction is greater: 6/11 or 11/12? (a) 6/11 (b) 11/12 (c) They are equal
  16. 16.3/4 + 1/2 = ? (a) 2/3 (b) 3/2 (c) 1 (d) 5/4
  17. 17.What is 2/5 of 25? (a) 15 (b) 11 (c) 10 (d) 5
  18. 18.What is 1/4 of 12? (a) 9 (b) 3 (c) 6 (d) 4
  19. 19.1/3 + 1/2 = ? (a) 1 (b) 2/5 (c) 2/3 (d) 5/6
  20. 20.Which fraction is greater: 2/3 or 1/6? (a) 2/3 (b) They are equal (c) 1/6
  21. 21.1/2 + 1/7 = ? (a) 5/7 (b) 9/14 (c) 4/7 (d) 2/9
  22. 22.Which fraction is greater: 4/5 or 3/4? (a) 4/5 (b) 3/4 (c) They are equal
  23. 23.What is 1/2 of 20? (a) 9 (b) 20 (c) 11 (d) 10
  24. 24.Which fraction is greater: 1/4 or 2/7? (a) 2/7 (b) They are equal (c) 1/4
  25. 25.What is 8/9 of 81? (a) 73 (b) 72 (c) 9 (d) 81
  26. 26.What is 1/4 of 36? (a) 18 (b) 9 (c) 10 (d) 27
  27. 27.1/3 + 1/6 = ? (a) 2/9 (b) 1/3 (c) 2/3 (d) 1/2
  28. 28.What is 1/4 of 40? (a) 11 (b) 10 (c) 30 (d) 20
  29. 29.What is 2/3 of 30? (a) 20 (b) 30 (c) 21 (d) 10
  30. 30.Which fraction is greater: 3/5 or 3/8? (a) 3/5 (b) 3/8 (c) They are equal
  31. 31.1/3 + 1/8 = ? (a) 2/11 (b) 1/2 (c) 5/12 (d) 11/24
  32. 32.Which fraction is greater: 9/10 or 3/8? (a) 9/10 (b) 3/8 (c) They are equal
  33. 33.3/5 + 2/3 = ? (a) 19/15 (b) 6/5 (c) 4/3 (d) 5/8
  34. 34.5/7 + 1/2 = ? (a) 8/7 (b) 9/7 (c) 2/3 (d) 17/14
  35. 35.What is 3/5 of 20? (a) 4 (b) 12 (c) 8 (d) 16
  36. 36.What is 1/6 of 36? (a) 12 (b) 7 (c) 30 (d) 6
  37. 37.Which fraction is greater: 1/12 or 3/5? (a) 1/12 (b) They are equal (c) 3/5
  38. 38.Which fraction is greater: 1/4 or 1/12? (a) 1/12 (b) They are equal (c) 1/4
  39. 39.What is 3/5 of 60? (a) 12 (b) 48 (c) 24 (d) 36
  40. 40.2/4 + 8/9 = ? (a) 10/13 (b) 49/36 (c) 25/18 (d) 17/12

Answer key

  1. 9
  2. 8
  3. 17/20
  4. 11/10
  5. 2
  6. 5/6
  7. 3/4
  8. 8
  9. 40
  10. 8/9
  11. 8/15
  12. 3/5
  13. 25/18
  14. 5/6
  15. 11/12
  16. 5/4
  17. 10
  18. 3
  19. 5/6
  20. 2/3
  21. 9/14
  22. 4/5
  23. 10
  24. 2/7
  25. 72
  26. 9
  27. 1/2
  28. 10
  29. 20
  30. 3/5
  31. 11/24
  32. 9/10
  33. 19/15
  34. 17/14
  35. 12
  36. 6
  37. 3/5
  38. 1/4
  39. 36
  40. 25/18

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