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Fractions Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 9: Fractions · Set 386 · 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 16? (a) 7 (b) 16 (c) 9 (d) 8
  2. 2.What is 1/3 of 15? (a) 6 (b) 4 (c) 10 (d) 5
  3. 3.5/6 + 4/6 = ? (a) 3/4 (b) 4/3 (c) 3/2 (d) 5/3
  4. 4.2/3 + 1/5 = ? (a) 3/8 (b) 4/5 (c) 13/15 (d) 14/15
  5. 5.Which fraction is greater: 2/3 or 9/10? (a) 2/3 (b) They are equal (c) 9/10
  6. 6.Which fraction is greater: 3/5 or 1/3? (a) 1/3 (b) 3/5 (c) They are equal
  7. 7.What is 5/7 of 14? (a) 4 (b) 10 (c) 2 (d) 12
  8. 8.What is 1/3 of 33? (a) 22 (b) 11 (c) 10 (d) 12
  9. 9.1/4 + 3/7 = ? (a) 4/11 (b) 9/14 (c) 19/28 (d) 5/7
  10. 10.1/2 + 1/9 = ? (a) 2/3 (b) 2/11 (c) 5/9 (d) 11/18
  11. 11.3/4 + 3/5 = ? (a) 13/10 (b) 7/5 (c) 2/3 (d) 27/20
  12. 12.Which fraction is greater: 1/3 or 4/9? (a) 4/9 (b) 1/3 (c) They are equal
  13. 13.Which fraction is greater: 1/4 or 1/3? (a) They are equal (b) 1/3 (c) 1/4
  14. 14.Which fraction is greater: 1/8 or 3/4? (a) 1/8 (b) They are equal (c) 3/4
  15. 15.2/3 + 2/3 = ? (a) 2/3 (b) 4/3 (c) 5/3 (d) 1
  16. 16.What is 2/9 of 90? (a) 30 (b) 70 (c) 10 (d) 20
  17. 17.What is 2/9 of 81? (a) 63 (b) 27 (c) 18 (d) 9
  18. 18.Which fraction is greater: 5/7 or 2/3? (a) 2/3 (b) They are equal (c) 5/7
  19. 19.Which fraction is greater: 1/4 or 2/7? (a) 2/7 (b) 1/4 (c) They are equal
  20. 20.Which fraction is greater: 2/9 or 11/12? (a) 2/9 (b) 11/12 (c) They are equal
  21. 21.Which fraction is greater: 1/10 or 1/5? (a) They are equal (b) 1/5 (c) 1/10
  22. 22.What is 1/2 of 8? (a) 4 (b) 3 (c) 8 (d) 5
  23. 23.Which fraction is greater: 2/3 or 7/9? (a) 7/9 (b) They are equal (c) 2/3
  24. 24.2/3 + 1/7 = ? (a) 6/7 (b) 16/21 (c) 17/21 (d) 3/10
  25. 25.1/4 + 4/5 = ? (a) 1 (b) 21/20 (c) 5/9 (d) 11/10
  26. 26.What is 1/4 of 40? (a) 20 (b) 30 (c) 11 (d) 10
  27. 27.2/3 + 1/4 = ? (a) 11/12 (b) 5/6 (c) 3/7 (d) 1
  28. 28.Which fraction is greater: 7/8 or 1/5? (a) 1/5 (b) 7/8 (c) They are equal
  29. 29.Which fraction is greater: 1/3 or 7/9? (a) 7/9 (b) 1/3 (c) They are equal
  30. 30.Which fraction is greater: 1/3 or 9/10? (a) They are equal (b) 1/3 (c) 9/10
  31. 31.Which fraction is greater: 5/8 or 3/7? (a) They are equal (b) 5/8 (c) 3/7
  32. 32.1/2 + 3/4 = ? (a) 3/2 (b) 2/3 (c) 1 (d) 5/4
  33. 33.Which fraction is greater: 3/7 or 1/5? (a) 3/7 (b) They are equal (c) 1/5
  34. 34.What is 1/4 of 36? (a) 10 (b) 9 (c) 18 (d) 27
  35. 35.What is 4/5 of 45? (a) 45 (b) 37 (c) 9 (d) 36
  36. 36.Which fraction is greater: 4/5 or 1/10? (a) 1/10 (b) They are equal (c) 4/5
  37. 37.What is 3/4 of 48? (a) 36 (b) 37 (c) 48 (d) 12
  38. 38.What is 5/8 of 80? (a) 30 (b) 50 (c) 60 (d) 10
  39. 39.1/4 + 2/3 = ? (a) 5/6 (b) 3/7 (c) 11/12 (d) 1
  40. 40.Which fraction is greater: 1/3 or 5/8? (a) They are equal (b) 5/8 (c) 1/3

Answer key

  1. 8
  2. 5
  3. 3/2
  4. 13/15
  5. 9/10
  6. 3/5
  7. 10
  8. 11
  9. 19/28
  10. 11/18
  11. 27/20
  12. 4/9
  13. 1/3
  14. 3/4
  15. 4/3
  16. 20
  17. 18
  18. 5/7
  19. 2/7
  20. 11/12
  21. 1/5
  22. 4
  23. 7/9
  24. 17/21
  25. 21/20
  26. 10
  27. 11/12
  28. 7/8
  29. 7/9
  30. 9/10
  31. 5/8
  32. 5/4
  33. 3/7
  34. 9
  35. 36
  36. 4/5
  37. 36
  38. 50
  39. 11/12
  40. 5/8

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