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Fractions Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 9: Fractions · Set 646 · 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 1/5 of 15? (a) 12 (b) 4 (c) 3 (d) 6
  2. 2.What is 4/5 of 30? (a) 25 (b) 30 (c) 24 (d) 6
  3. 3.1/2 + 1/2 = ? (a) 2 (b) 3/2 (c) 1/2 (d) 1
  4. 4.What is 1/5 of 30? (a) 12 (b) 6 (c) 7 (d) 24
  5. 5.3/5 + 2/5 = ? (a) 4/5 (b) 6/5 (c) 1/2 (d) 1
  6. 6.What is 3/4 of 36? (a) 28 (b) 9 (c) 27 (d) 36
  7. 7.Which fraction is greater: 1/11 or 3/4? (a) 1/11 (b) 3/4 (c) They are equal
  8. 8.What is 2/7 of 63? (a) 45 (b) 27 (c) 18 (d) 9
  9. 9.Which fraction is greater: 1/3 or 1/7? (a) 1/7 (b) They are equal (c) 1/3
  10. 10.1/7 + 3/7 = ? (a) 3/7 (b) 5/7 (c) 4/7 (d) 2/7
  11. 11.What is 5/9 of 36? (a) 24 (b) 4 (c) 16 (d) 20
  12. 12.Which fraction is greater: 2/3 or 3/8? (a) 3/8 (b) They are equal (c) 2/3
  13. 13.What is 2/9 of 36? (a) 28 (b) 12 (c) 4 (d) 8
  14. 14.5/8 + 1/2 = ? (a) 5/4 (b) 9/8 (c) 3/5 (d) 1
  15. 15.What is 1/4 of 36? (a) 9 (b) 18 (c) 27 (d) 10
  16. 16.Which fraction is greater: 1/7 or 1/3? (a) 1/3 (b) They are equal (c) 1/7
  17. 17.What is 2/3 of 30? (a) 21 (b) 10 (c) 30 (d) 20
  18. 18.Which fraction is greater: 1/8 or 7/10? (a) 7/10 (b) 1/8 (c) They are equal
  19. 19.Which fraction is greater: 1/10 or 1/12? (a) They are equal (b) 1/10 (c) 1/12
  20. 20.1/3 + 2/3 = ? (a) 1 (b) 1/2 (c) 2/3 (d) 4/3
  21. 21.What is 1/6 of 36? (a) 6 (b) 30 (c) 12 (d) 7
  22. 22.What is 1/2 of 20? (a) 11 (b) 20 (c) 9 (d) 10
  23. 23.What is 4/5 of 10? (a) 9 (b) 2 (c) 8 (d) 10
  24. 24.What is 3/4 of 44? (a) 33 (b) 34 (c) 11 (d) 44
  25. 25.What is 2/3 of 12? (a) 8 (b) 4 (c) 9 (d) 12
  26. 26.1/3 + 2/4 = ? (a) 11/12 (b) 3/7 (c) 3/4 (d) 5/6
  27. 27.What is 1/2 of 14? (a) 8 (b) 7 (c) 6 (d) 14
  28. 28.What is 2/7 of 42? (a) 18 (b) 30 (c) 6 (d) 12
  29. 29.What is 1/2 of 4? (a) 2 (b) 4 (c) 1 (d) 3
  30. 30.What is 2/5 of 15? (a) 9 (b) 7 (c) 6 (d) 3
  31. 31.Which fraction is greater: 7/10 or 3/4? (a) 7/10 (b) 3/4 (c) They are equal
  32. 32.3/6 + 2/4 = ? (a) 1/2 (b) 1 (c) 13/12 (d) 11/12
  33. 33.Which fraction is greater: 4/11 or 1/6? (a) 4/11 (b) 1/6 (c) They are equal
  34. 34.Which fraction is greater: 5/8 or 1/11? (a) They are equal (b) 5/8 (c) 1/11
  35. 35.Which fraction is greater: 1/3 or 1/4? (a) 1/3 (b) 1/4 (c) They are equal
  36. 36.5/6 + 1/3 = ? (a) 1 (b) 4/3 (c) 2/3 (d) 7/6
  37. 37.Which fraction is greater: 2/3 or 5/6? (a) 2/3 (b) They are equal (c) 5/6
  38. 38.2/3 + 1/2 = ? (a) 4/3 (b) 3/5 (c) 7/6 (d) 1
  39. 39.Which fraction is greater: 3/4 or 1/5? (a) They are equal (b) 3/4 (c) 1/5
  40. 40.4/5 + 1/5 = ? (a) 4/5 (b) 1/2 (c) 1 (d) 6/5

Answer key

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

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