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Fractions Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 9: Fractions · Set 492 · 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. 1.3/4 + 1/2 = ? (a) 3/2 (b) 5/4 (c) 2/3 (d) 1
  2. 2.What is 1/2 of 20? (a) 9 (b) 20 (c) 10 (d) 11
  3. 3.What is 5/6 of 30? (a) 25 (b) 26 (c) 5 (d) 30
  4. 4.Which fraction is greater: 1/3 or 7/10? (a) 7/10 (b) They are equal (c) 1/3
  5. 5.What is 2/5 of 25? (a) 10 (b) 5 (c) 15 (d) 11
  6. 6.Which fraction is greater: 5/7 or 1/6? (a) 1/6 (b) 5/7 (c) They are equal
  7. 7.What is 5/9 of 108? (a) 12 (b) 60 (c) 48 (d) 72
  8. 8.2/4 + 2/5 = ? (a) 17/20 (b) 4/9 (c) 19/20 (d) 9/10
  9. 9.1/3 + 2/7 = ? (a) 2/3 (b) 3/10 (c) 4/7 (d) 13/21
  10. 10.1/2 + 1/3 = ? (a) 2/3 (b) 1 (c) 5/6 (d) 2/5
  11. 11.1/7 + 3/5 = ? (a) 27/35 (b) 26/35 (c) 1/3 (d) 5/7
  12. 12.Which fraction is greater: 1/3 or 2/5? (a) 2/5 (b) They are equal (c) 1/3
  13. 13.What is 1/7 of 21? (a) 3 (b) 4 (c) 6 (d) 18
  14. 14.Which fraction is greater: 2/3 or 1/4? (a) 1/4 (b) They are equal (c) 2/3
  15. 15.4/6 + 4/6 = ? (a) 3/2 (b) 2/3 (c) 4/3 (d) 7/6
  16. 16.6/7 + 1/3 = ? (a) 7/10 (b) 8/7 (c) 26/21 (d) 25/21
  17. 17.1/3 + 1/5 = ? (a) 7/15 (b) 3/5 (c) 8/15 (d) 1/4
  18. 18.Which fraction is greater: 3/11 or 1/9? (a) They are equal (b) 3/11 (c) 1/9
  19. 19.3/6 + 2/4 = ? (a) 13/12 (b) 1 (c) 11/12 (d) 1/2
  20. 20.What is 1/4 of 12? (a) 3 (b) 4 (c) 9 (d) 6
  21. 21.Which fraction is greater: 5/8 or 1/4? (a) They are equal (b) 5/8 (c) 1/4
  22. 22.Which fraction is greater: 4/5 or 9/10? (a) 9/10 (b) 4/5 (c) They are equal
  23. 23.Which fraction is greater: 1/5 or 11/12? (a) 1/5 (b) 11/12 (c) They are equal
  24. 24.Which fraction is greater: 6/7 or 5/9? (a) 6/7 (b) 5/9 (c) They are equal
  25. 25.5/9 + 5/9 = ? (a) 1 (b) 11/9 (c) 10/9 (d) 5/9
  26. 26.Which fraction is greater: 2/3 or 2/5? (a) They are equal (b) 2/3 (c) 2/5
  27. 27.What is 5/6 of 24? (a) 24 (b) 4 (c) 21 (d) 20
  28. 28.Which fraction is greater: 7/8 or 2/3? (a) They are equal (b) 7/8 (c) 2/3
  29. 29.Which fraction is greater: 3/5 or 3/4? (a) 3/5 (b) 3/4 (c) They are equal
  30. 30.1/5 + 1/3 = ? (a) 7/15 (b) 3/5 (c) 1/4 (d) 8/15
  31. 31.2/5 + 1/3 = ? (a) 4/5 (b) 3/8 (c) 2/3 (d) 11/15
  32. 32.1/3 + 5/7 = ? (a) 1 (b) 3/5 (c) 23/21 (d) 22/21
  33. 33.Which fraction is greater: 3/10 or 1/4? (a) They are equal (b) 1/4 (c) 3/10
  34. 34.2/6 + 1/4 = ? (a) 3/10 (b) 2/3 (c) 1/2 (d) 7/12
  35. 35.1/2 + 5/9 = ? (a) 10/9 (b) 19/18 (c) 6/11 (d) 1
  36. 36.1/5 + 1/7 = ? (a) 12/35 (b) 1/6 (c) 11/35 (d) 13/35
  37. 37.Which fraction is greater: 2/9 or 2/3? (a) 2/9 (b) 2/3 (c) They are equal
  38. 38.What is 1/4 of 40? (a) 20 (b) 10 (c) 11 (d) 30
  39. 39.Which fraction is greater: 2/11 or 5/7? (a) 2/11 (b) They are equal (c) 5/7
  40. 40.1/2 + 2/5 = ? (a) 4/5 (b) 3/7 (c) 9/10 (d) 1

Answer key

  1. 5/4
  2. 10
  3. 25
  4. 7/10
  5. 10
  6. 5/7
  7. 60
  8. 9/10
  9. 13/21
  10. 5/6
  11. 26/35
  12. 2/5
  13. 3
  14. 2/3
  15. 4/3
  16. 25/21
  17. 8/15
  18. 3/11
  19. 1
  20. 3
  21. 5/8
  22. 9/10
  23. 11/12
  24. 6/7
  25. 10/9
  26. 2/3
  27. 20
  28. 7/8
  29. 3/4
  30. 8/15
  31. 11/15
  32. 22/21
  33. 3/10
  34. 7/12
  35. 19/18
  36. 12/35
  37. 2/3
  38. 10
  39. 5/7
  40. 9/10

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