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Fractions Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 9: Fractions · Set 365 · 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 2/3 of 21? (a) 14 (b) 7 (c) 21 (d) 15
  2. 2.1/2 + 1/5 = ? (a) 2/7 (b) 3/5 (c) 7/10 (d) 4/5
  3. 3.Which fraction is greater: 2/3 or 4/7? (a) They are equal (b) 4/7 (c) 2/3
  4. 4.What is 1/4 of 28? (a) 14 (b) 8 (c) 7 (d) 21
  5. 5.What is 1/3 of 30? (a) 9 (b) 10 (c) 11 (d) 20
  6. 6.Which fraction is greater: 5/7 or 11/12? (a) 11/12 (b) They are equal (c) 5/7
  7. 7.What is 3/4 of 48? (a) 12 (b) 36 (c) 37 (d) 48
  8. 8.What is 2/5 of 20? (a) 12 (b) 4 (c) 9 (d) 8
  9. 9.Which fraction is greater: 10/11 or 2/5? (a) They are equal (b) 2/5 (c) 10/11
  10. 10.What is 2/3 of 15? (a) 15 (b) 5 (c) 11 (d) 10
  11. 11.What is 5/7 of 63? (a) 45 (b) 9 (c) 18 (d) 54
  12. 12.What is 1/5 of 25? (a) 20 (b) 10 (c) 6 (d) 5
  13. 13.What is 1/2 of 16? (a) 7 (b) 9 (c) 16 (d) 8
  14. 14.What is 1/7 of 35? (a) 6 (b) 10 (c) 30 (d) 5
  15. 15.Which fraction is greater: 7/10 or 1/5? (a) 7/10 (b) They are equal (c) 1/5
  16. 16.4/5 + 1/5 = ? (a) 6/5 (b) 4/5 (c) 1 (d) 1/2
  17. 17.Which fraction is greater: 1/10 or 6/7? (a) They are equal (b) 6/7 (c) 1/10
  18. 18.2/6 + 2/9 = ? (a) 1/2 (b) 11/18 (c) 4/15 (d) 5/9
  19. 19.Which fraction is greater: 9/10 or 2/3? (a) 9/10 (b) They are equal (c) 2/3
  20. 20.6/7 + 1/3 = ? (a) 25/21 (b) 26/21 (c) 8/7 (d) 7/10
  21. 21.1/3 + 1/2 = ? (a) 1 (b) 5/6 (c) 2/3 (d) 2/5
  22. 22.1/3 + 1/5 = ? (a) 1/4 (b) 7/15 (c) 3/5 (d) 8/15
  23. 23.What is 1/7 of 84? (a) 72 (b) 13 (c) 12 (d) 24
  24. 24.Which fraction is greater: 6/7 or 7/8? (a) 6/7 (b) They are equal (c) 7/8
  25. 25.Which fraction is greater: 6/11 or 5/6? (a) They are equal (b) 5/6 (c) 6/11
  26. 26.4/5 + 1/3 = ? (a) 17/15 (b) 5/8 (c) 16/15 (d) 6/5
  27. 27.Which fraction is greater: 7/10 or 1/4? (a) 7/10 (b) 1/4 (c) They are equal
  28. 28.What is 1/2 of 22? (a) 11 (b) 12 (c) 22 (d) 10
  29. 29.Which fraction is greater: 5/7 or 1/4? (a) 5/7 (b) They are equal (c) 1/4
  30. 30.6/8 + 2/3 = ? (a) 8/11 (b) 11/8 (c) 17/12 (d) 35/24
  31. 31.Which fraction is greater: 6/11 or 2/3? (a) 6/11 (b) 2/3 (c) They are equal
  32. 32.Which fraction is greater: 4/9 or 1/10? (a) 1/10 (b) 4/9 (c) They are equal
  33. 33.Which fraction is greater: 3/10 or 2/7? (a) 2/7 (b) They are equal (c) 3/10
  34. 34.Which fraction is greater: 8/9 or 5/6? (a) They are equal (b) 8/9 (c) 5/6
  35. 35.6/9 + 1/3 = ? (a) 1 (b) 7/12 (c) 8/9 (d) 10/9
  36. 36.What is 1/6 of 48? (a) 16 (b) 40 (c) 8 (d) 9
  37. 37.4/6 + 1/2 = ? (a) 5/8 (b) 1 (c) 4/3 (d) 7/6
  38. 38.What is 3/7 of 77? (a) 34 (b) 11 (c) 33 (d) 44
  39. 39.1/2 + 7/8 = ? (a) 4/5 (b) 5/4 (c) 3/2 (d) 11/8
  40. 40.What is 2/3 of 6? (a) 5 (b) 6 (c) 4 (d) 2

Answer key

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

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