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Fractions Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 9: Fractions · Set 851 · 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 3/7 of 42? (a) 24 (b) 19 (c) 18 (d) 6
  2. 2.4/9 + 6/9 = ? (a) 5/9 (b) 11/9 (c) 1 (d) 10/9
  3. 3.Which fraction is greater: 3/4 or 7/8? (a) They are equal (b) 7/8 (c) 3/4
  4. 4.What is 1/2 of 18? (a) 9 (b) 10 (c) 18 (d) 8
  5. 5.Which fraction is greater: 3/11 or 1/3? (a) 3/11 (b) 1/3 (c) They are equal
  6. 6.What is 1/9 of 99? (a) 22 (b) 11 (c) 88 (d) 12
  7. 7.What is 3/5 of 20? (a) 8 (b) 12 (c) 4 (d) 16
  8. 8.Which fraction is greater: 2/3 or 3/4? (a) 2/3 (b) 3/4 (c) They are equal
  9. 9.2/4 + 1/3 = ? (a) 3/7 (b) 11/12 (c) 3/4 (d) 5/6
  10. 10.What is 3/7 of 49? (a) 7 (b) 22 (c) 28 (d) 21
  11. 11.1/3 + 4/8 = ? (a) 7/8 (b) 19/24 (c) 5/11 (d) 5/6
  12. 12.What is 1/4 of 48? (a) 24 (b) 13 (c) 36 (d) 12
  13. 13.1/2 + 3/5 = ? (a) 11/10 (b) 4/7 (c) 6/5 (d) 1
  14. 14.What is 2/3 of 24? (a) 17 (b) 24 (c) 8 (d) 16
  15. 15.6/7 + 1/3 = ? (a) 26/21 (b) 25/21 (c) 8/7 (d) 7/10
  16. 16.What is 3/8 of 48? (a) 6 (b) 30 (c) 24 (d) 18
  17. 17.What is 3/5 of 45? (a) 18 (b) 9 (c) 27 (d) 36
  18. 18.Which fraction is greater: 8/9 or 2/3? (a) They are equal (b) 8/9 (c) 2/3
  19. 19.1/2 + 2/4 = ? (a) 5/4 (b) 3/4 (c) 1 (d) 1/2
  20. 20.Which fraction is greater: 2/3 or 1/6? (a) They are equal (b) 2/3 (c) 1/6
  21. 21.What is 1/4 of 12? (a) 6 (b) 9 (c) 3 (d) 4
  22. 22.What is 1/2 of 24? (a) 12 (b) 11 (c) 13 (d) 24
  23. 23.Which fraction is greater: 2/5 or 1/3? (a) 1/3 (b) They are equal (c) 2/5
  24. 24.Which fraction is greater: 2/3 or 3/5? (a) 2/3 (b) They are equal (c) 3/5
  25. 25.Which fraction is greater: 4/7 or 2/5? (a) 4/7 (b) They are equal (c) 2/5
  26. 26.2/3 + 2/5 = ? (a) 1 (b) 17/15 (c) 1/2 (d) 16/15
  27. 27.What is 5/6 of 30? (a) 25 (b) 30 (c) 5 (d) 26
  28. 28.2/3 + 1/4 = ? (a) 3/7 (b) 5/6 (c) 11/12 (d) 1
  29. 29.Which fraction is greater: 7/9 or 1/4? (a) 7/9 (b) 1/4 (c) They are equal
  30. 30.7/8 + 2/8 = ? (a) 5/4 (b) 9/16 (c) 1 (d) 9/8
  31. 31.What is 4/5 of 25? (a) 21 (b) 25 (c) 20 (d) 5
  32. 32.1/4 + 1/3 = ? (a) 2/3 (b) 7/12 (c) 1/2 (d) 2/7
  33. 33.Which fraction is greater: 3/5 or 5/8? (a) 3/5 (b) 5/8 (c) They are equal
  34. 34.What is 1/2 of 20? (a) 20 (b) 11 (c) 9 (d) 10
  35. 35.What is 1/3 of 27? (a) 8 (b) 9 (c) 10 (d) 18
  36. 36.Which fraction is greater: 1/8 or 2/7? (a) 2/7 (b) They are equal (c) 1/8
  37. 37.What is 1/3 of 9? (a) 4 (b) 6 (c) 2 (d) 3
  38. 38.What is 5/6 of 36? (a) 6 (b) 31 (c) 30 (d) 36
  39. 39.4/7 + 1/3 = ? (a) 1/2 (b) 19/21 (c) 20/21 (d) 6/7
  40. 40.What is 6/7 of 63? (a) 63 (b) 9 (c) 55 (d) 54

Answer key

  1. 18
  2. 10/9
  3. 7/8
  4. 9
  5. 1/3
  6. 11
  7. 12
  8. 3/4
  9. 5/6
  10. 21
  11. 5/6
  12. 12
  13. 11/10
  14. 16
  15. 25/21
  16. 18
  17. 27
  18. 8/9
  19. 1
  20. 2/3
  21. 3
  22. 12
  23. 2/5
  24. 2/3
  25. 4/7
  26. 16/15
  27. 25
  28. 11/12
  29. 7/9
  30. 9/8
  31. 20
  32. 7/12
  33. 5/8
  34. 10
  35. 9
  36. 2/7
  37. 3
  38. 30
  39. 19/21
  40. 54

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