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Fractions Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 9: Fractions · Set 580 · 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: 7/10 or 2/9? (a) They are equal (b) 2/9 (c) 7/10
  2. 2.Which fraction is greater: 1/9 or 9/10? (a) 1/9 (b) They are equal (c) 9/10
  3. 3.Which fraction is greater: 7/9 or 3/4? (a) They are equal (b) 7/9 (c) 3/4
  4. 4.Which fraction is greater: 7/11 or 1/3? (a) 7/11 (b) 1/3 (c) They are equal
  5. 5.3/4 + 1/2 = ? (a) 5/4 (b) 1 (c) 2/3 (d) 3/2
  6. 6.What is 7/8 of 32? (a) 32 (b) 29 (c) 4 (d) 28
  7. 7.1/8 + 1/2 = ? (a) 1/5 (b) 1/2 (c) 5/8 (d) 3/4
  8. 8.Which fraction is greater: 1/4 or 3/8? (a) 3/8 (b) 1/4 (c) They are equal
  9. 9.1/5 + 1/2 = ? (a) 4/5 (b) 7/10 (c) 3/5 (d) 2/7
  10. 10.1/3 + 1/3 = ? (a) 1/3 (b) 4/3 (c) 2/3 (d) 1
  11. 11.4/5 + 2/3 = ? (a) 7/5 (b) 23/15 (c) 22/15 (d) 3/4
  12. 12.What is 1/2 of 20? (a) 9 (b) 11 (c) 20 (d) 10
  13. 13.Which fraction is greater: 5/11 or 9/10? (a) 5/11 (b) They are equal (c) 9/10
  14. 14.What is 2/3 of 15? (a) 10 (b) 15 (c) 11 (d) 5
  15. 15.What is 1/3 of 33? (a) 22 (b) 10 (c) 11 (d) 12
  16. 16.3/8 + 3/6 = ? (a) 3/7 (b) 11/12 (c) 5/6 (d) 7/8
  17. 17.What is 4/5 of 20? (a) 16 (b) 20 (c) 17 (d) 4
  18. 18.Which fraction is greater: 1/3 or 2/5? (a) They are equal (b) 1/3 (c) 2/5
  19. 19.1/4 + 5/6 = ? (a) 7/6 (b) 13/12 (c) 1 (d) 3/5
  20. 20.What is 1/7 of 70? (a) 10 (b) 60 (c) 20 (d) 11
  21. 21.Which fraction is greater: 1/4 or 4/9? (a) 1/4 (b) 4/9 (c) They are equal
  22. 22.What is 1/9 of 45? (a) 6 (b) 5 (c) 10 (d) 40
  23. 23.What is 5/8 of 88? (a) 55 (b) 11 (c) 66 (d) 33
  24. 24.What is 2/3 of 21? (a) 15 (b) 7 (c) 21 (d) 14
  25. 25.1/3 + 3/6 = ? (a) 4/9 (b) 2/3 (c) 5/6 (d) 1
  26. 26.What is 1/6 of 72? (a) 24 (b) 12 (c) 13 (d) 60
  27. 27.1/2 + 7/8 = ? (a) 3/2 (b) 4/5 (c) 5/4 (d) 11/8
  28. 28.Which fraction is greater: 1/11 or 11/12? (a) 11/12 (b) 1/11 (c) They are equal
  29. 29.1/3 + 1/7 = ? (a) 11/21 (b) 10/21 (c) 3/7 (d) 1/5
  30. 30.What is 7/8 of 72? (a) 72 (b) 64 (c) 9 (d) 63
  31. 31.What is 3/8 of 56? (a) 35 (b) 7 (c) 28 (d) 21
  32. 32.Which fraction is greater: 7/10 or 1/7? (a) 1/7 (b) 7/10 (c) They are equal
  33. 33.2/3 + 2/7 = ? (a) 2/5 (b) 19/21 (c) 20/21 (d) 1
  34. 34.6/8 + 1/2 = ? (a) 5/4 (b) 7/10 (c) 11/8 (d) 9/8
  35. 35.Which fraction is greater: 7/8 or 2/5? (a) They are equal (b) 7/8 (c) 2/5
  36. 36.8/9 + 2/3 = ? (a) 13/9 (b) 5/6 (c) 5/3 (d) 14/9
  37. 37.3/5 + 4/7 = ? (a) 7/12 (b) 6/5 (c) 8/7 (d) 41/35
  38. 38.Which fraction is greater: 2/3 or 1/8? (a) They are equal (b) 1/8 (c) 2/3
  39. 39.What is 1/2 of 16? (a) 7 (b) 16 (c) 9 (d) 8
  40. 40.What is 4/5 of 15? (a) 15 (b) 13 (c) 3 (d) 12

Answer key

  1. 7/10
  2. 9/10
  3. 7/9
  4. 7/11
  5. 5/4
  6. 28
  7. 5/8
  8. 3/8
  9. 7/10
  10. 2/3
  11. 22/15
  12. 10
  13. 9/10
  14. 10
  15. 11
  16. 7/8
  17. 16
  18. 2/5
  19. 13/12
  20. 10
  21. 4/9
  22. 5
  23. 55
  24. 14
  25. 5/6
  26. 12
  27. 11/8
  28. 11/12
  29. 10/21
  30. 63
  31. 21
  32. 7/10
  33. 20/21
  34. 5/4
  35. 7/8
  36. 14/9
  37. 41/35
  38. 2/3
  39. 8
  40. 12

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