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Fractions Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 9: Fractions · Set 455 · 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 20? (a) 10 (b) 20 (c) 9 (d) 11
  2. 2.1/3 + 3/8 = ? (a) 3/4 (b) 17/24 (c) 4/11 (d) 2/3
  3. 3.2/6 + 2/4 = ? (a) 11/12 (b) 3/4 (c) 2/5 (d) 5/6
  4. 4.Which fraction is greater: 2/3 or 4/5? (a) They are equal (b) 4/5 (c) 2/3
  5. 5.3/4 + 1/4 = ? (a) 1 (b) 3/4 (c) 1/2 (d) 5/4
  6. 6.2/3 + 1/2 = ? (a) 4/3 (b) 3/5 (c) 1 (d) 7/6
  7. 7.Which fraction is greater: 1/4 or 4/5? (a) They are equal (b) 4/5 (c) 1/4
  8. 8.5/8 + 5/8 = ? (a) 5/8 (b) 11/8 (c) 9/8 (d) 5/4
  9. 9.What is 2/7 of 77? (a) 11 (b) 33 (c) 22 (d) 55
  10. 10.What is 1/9 of 54? (a) 7 (b) 48 (c) 6 (d) 12
  11. 11.2/3 + 6/8 = ? (a) 35/24 (b) 8/11 (c) 17/12 (d) 11/8
  12. 12.Which fraction is greater: 3/5 or 1/7? (a) They are equal (b) 3/5 (c) 1/7
  13. 13.What is 3/4 of 20? (a) 16 (b) 20 (c) 5 (d) 15
  14. 14.Which fraction is greater: 1/12 or 1/3? (a) 1/12 (b) 1/3 (c) They are equal
  15. 15.Which fraction is greater: 7/12 or 2/7? (a) 7/12 (b) They are equal (c) 2/7
  16. 16.What is 1/3 of 15? (a) 10 (b) 4 (c) 6 (d) 5
  17. 17.Which fraction is greater: 1/3 or 5/7? (a) 1/3 (b) They are equal (c) 5/7
  18. 18.2/6 + 1/9 = ? (a) 1/5 (b) 1/2 (c) 7/18 (d) 4/9
  19. 19.Which fraction is greater: 1/4 or 3/5? (a) They are equal (b) 3/5 (c) 1/4
  20. 20.Which fraction is greater: 1/3 or 3/7? (a) They are equal (b) 3/7 (c) 1/3
  21. 21.Which fraction is greater: 2/3 or 7/8? (a) They are equal (b) 2/3 (c) 7/8
  22. 22.What is 1/2 of 10? (a) 10 (b) 4 (c) 6 (d) 5
  23. 23.Which fraction is greater: 2/7 or 4/9? (a) They are equal (b) 2/7 (c) 4/9
  24. 24.Which fraction is greater: 1/11 or 1/4? (a) 1/11 (b) 1/4 (c) They are equal
  25. 25.1/7 + 1/2 = ? (a) 2/9 (b) 4/7 (c) 9/14 (d) 5/7
  26. 26.What is 1/2 of 24? (a) 11 (b) 24 (c) 12 (d) 13
  27. 27.1/3 + 1/3 = ? (a) 4/3 (b) 1 (c) 1/3 (d) 2/3
  28. 28.Which fraction is greater: 3/4 or 1/3? (a) 3/4 (b) They are equal (c) 1/3
  29. 29.Which fraction is greater: 2/5 or 2/3? (a) They are equal (b) 2/3 (c) 2/5
  30. 30.Which fraction is greater: 1/11 or 7/9? (a) They are equal (b) 7/9 (c) 1/11
  31. 31.What is 7/9 of 72? (a) 64 (b) 16 (c) 56 (d) 8
  32. 32.Which fraction is greater: 5/7 or 8/9? (a) 5/7 (b) 8/9 (c) They are equal
  33. 33.What is 5/6 of 54? (a) 54 (b) 45 (c) 46 (d) 9
  34. 34.1/2 + 1/2 = ? (a) 2 (b) 1/2 (c) 3/2 (d) 1
  35. 35.1/5 + 2/3 = ? (a) 13/15 (b) 3/8 (c) 4/5 (d) 14/15
  36. 36.What is 1/5 of 55? (a) 11 (b) 44 (c) 12 (d) 22
  37. 37.What is 2/5 of 50? (a) 20 (b) 10 (c) 21 (d) 30
  38. 38.Which fraction is greater: 2/9 or 1/8? (a) They are equal (b) 2/9 (c) 1/8
  39. 39.Which fraction is greater: 4/11 or 4/7? (a) They are equal (b) 4/7 (c) 4/11
  40. 40.1/2 + 1/4 = ? (a) 1/3 (b) 1/2 (c) 1 (d) 3/4

Answer key

  1. 10
  2. 17/24
  3. 5/6
  4. 4/5
  5. 1
  6. 7/6
  7. 4/5
  8. 5/4
  9. 22
  10. 6
  11. 17/12
  12. 3/5
  13. 15
  14. 1/3
  15. 7/12
  16. 5
  17. 5/7
  18. 4/9
  19. 3/5
  20. 3/7
  21. 7/8
  22. 5
  23. 4/9
  24. 1/4
  25. 9/14
  26. 12
  27. 2/3
  28. 3/4
  29. 2/3
  30. 7/9
  31. 56
  32. 8/9
  33. 45
  34. 1
  35. 13/15
  36. 11
  37. 20
  38. 2/9
  39. 4/7
  40. 3/4

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