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Fractions Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 9: Fractions · Set 645 · 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 5/7 of 42? (a) 36 (b) 12 (c) 30 (d) 6
  2. 2.1/2 + 2/7 = ? (a) 1/3 (b) 6/7 (c) 11/14 (d) 5/7
  3. 3.1/3 + 1/4 = ? (a) 7/12 (b) 2/7 (c) 2/3 (d) 1/2
  4. 4.What is 3/5 of 40? (a) 24 (b) 16 (c) 32 (d) 8
  5. 5.What is 1/2 of 18? (a) 18 (b) 8 (c) 10 (d) 9
  6. 6.Which fraction is greater: 7/10 or 1/8? (a) They are equal (b) 7/10 (c) 1/8
  7. 7.Which fraction is greater: 3/11 or 1/6? (a) They are equal (b) 1/6 (c) 3/11
  8. 8.4/5 + 1/2 = ? (a) 7/5 (b) 13/10 (c) 6/5 (d) 5/7
  9. 9.Which fraction is greater: 8/11 or 1/3? (a) 8/11 (b) 1/3 (c) They are equal
  10. 10.2/6 + 5/6 = ? (a) 1 (b) 4/3 (c) 7/6 (d) 7/12
  11. 11.Which fraction is greater: 8/11 or 3/5? (a) They are equal (b) 3/5 (c) 8/11
  12. 12.2/7 + 2/3 = ? (a) 2/5 (b) 20/21 (c) 19/21 (d) 1
  13. 13.Which fraction is greater: 3/10 or 3/4? (a) 3/4 (b) They are equal (c) 3/10
  14. 14.What is 1/4 of 40? (a) 10 (b) 11 (c) 30 (d) 20
  15. 15.Which fraction is greater: 7/10 or 9/11? (a) 9/11 (b) 7/10 (c) They are equal
  16. 16.Which fraction is greater: 1/5 or 1/9? (a) They are equal (b) 1/9 (c) 1/5
  17. 17.3/4 + 1/2 = ? (a) 5/4 (b) 1 (c) 3/2 (d) 2/3
  18. 18.What is 1/4 of 20? (a) 5 (b) 10 (c) 6 (d) 15
  19. 19.What is 1/2 of 8? (a) 3 (b) 8 (c) 5 (d) 4
  20. 20.What is 1/2 of 16? (a) 7 (b) 16 (c) 8 (d) 9
  21. 21.3/5 + 1/3 = ? (a) 13/15 (b) 1/2 (c) 14/15 (d) 1
  22. 22.Which fraction is greater: 1/7 or 1/4? (a) They are equal (b) 1/4 (c) 1/7
  23. 23.2/3 + 8/9 = ? (a) 13/9 (b) 5/3 (c) 14/9 (d) 5/6
  24. 24.1/7 + 1/2 = ? (a) 2/9 (b) 9/14 (c) 5/7 (d) 4/7
  25. 25.What is 4/5 of 45? (a) 9 (b) 37 (c) 45 (d) 36
  26. 26.What is 1/9 of 81? (a) 10 (b) 9 (c) 18 (d) 72
  27. 27.What is 3/8 of 96? (a) 48 (b) 12 (c) 60 (d) 36
  28. 28.What is 4/5 of 20? (a) 4 (b) 17 (c) 16 (d) 20
  29. 29.What is 4/9 of 63? (a) 35 (b) 28 (c) 7 (d) 29
  30. 30.Which fraction is greater: 5/7 or 3/8? (a) 5/7 (b) 3/8 (c) They are equal
  31. 31.What is 1/3 of 12? (a) 8 (b) 5 (c) 3 (d) 4
  32. 32.Which fraction is greater: 2/11 or 3/4? (a) They are equal (b) 2/11 (c) 3/4
  33. 33.1/3 + 2/6 = ? (a) 5/6 (b) 1/3 (c) 1/2 (d) 2/3
  34. 34.What is 2/5 of 40? (a) 24 (b) 17 (c) 16 (d) 8
  35. 35.1/3 + 2/3 = ? (a) 2/3 (b) 4/3 (c) 1 (d) 1/2
  36. 36.6/8 + 3/4 = ? (a) 13/8 (b) 3/2 (c) 11/8 (d) 3/4
  37. 37.Which fraction is greater: 1/9 or 8/11? (a) 1/9 (b) They are equal (c) 8/11
  38. 38.Which fraction is greater: 1/4 or 7/8? (a) 1/4 (b) They are equal (c) 7/8
  39. 39.What is 1/3 of 6? (a) 1 (b) 3 (c) 4 (d) 2
  40. 40.Which fraction is greater: 1/4 or 1/3? (a) 1/4 (b) They are equal (c) 1/3

Answer key

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

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