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Fractions Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 9: Fractions · Set 452 · 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. 1.1/3 + 1/9 = ? (a) 5/9 (b) 1/3 (c) 1/6 (d) 4/9
  2. 2.6/7 + 1/5 = ? (a) 37/35 (b) 36/35 (c) 38/35 (d) 7/12
  3. 3.4/5 + 5/7 = ? (a) 52/35 (b) 54/35 (c) 53/35 (d) 3/4
  4. 4.3/5 + 2/4 = ? (a) 21/20 (b) 5/9 (c) 11/10 (d) 23/20
  5. 5.1/2 + 2/4 = ? (a) 5/4 (b) 3/4 (c) 1/2 (d) 1
  6. 6.7/9 + 2/4 = ? (a) 47/36 (b) 9/13 (c) 5/4 (d) 23/18
  7. 7.Which fraction is greater: 7/11 or 3/4? (a) They are equal (b) 7/11 (c) 3/4
  8. 8.1/8 + 1/2 = ? (a) 3/4 (b) 1/5 (c) 5/8 (d) 1/2
  9. 9.What is 1/5 of 40? (a) 8 (b) 9 (c) 16 (d) 32
  10. 10.What is 2/5 of 35? (a) 7 (b) 21 (c) 15 (d) 14
  11. 11.3/4 + 4/6 = ? (a) 17/12 (b) 3/2 (c) 7/10 (d) 4/3
  12. 12.Which fraction is greater: 1/3 or 4/7? (a) 1/3 (b) They are equal (c) 4/7
  13. 13.What is 3/4 of 12? (a) 9 (b) 3 (c) 10 (d) 12
  14. 14.What is 3/4 of 8? (a) 2 (b) 7 (c) 6 (d) 8
  15. 15.Which fraction is greater: 9/11 or 1/6? (a) 9/11 (b) 1/6 (c) They are equal
  16. 16.Which fraction is greater: 5/9 or 1/3? (a) They are equal (b) 1/3 (c) 5/9
  17. 17.Which fraction is greater: 1/3 or 1/11? (a) 1/11 (b) 1/3 (c) They are equal
  18. 18.2/4 + 1/2 = ? (a) 1 (b) 5/4 (c) 1/2 (d) 3/4
  19. 19.Which fraction is greater: 9/10 or 3/4? (a) 9/10 (b) They are equal (c) 3/4
  20. 20.1/4 + 1/2 = ? (a) 1/3 (b) 1 (c) 1/2 (d) 3/4
  21. 21.4/5 + 3/5 = ? (a) 7/5 (b) 6/5 (c) 7/10 (d) 8/5
  22. 22.1/7 + 1/2 = ? (a) 2/9 (b) 4/7 (c) 9/14 (d) 5/7
  23. 23.Which fraction is greater: 1/4 or 2/3? (a) 1/4 (b) 2/3 (c) They are equal
  24. 24.What is 1/4 of 28? (a) 7 (b) 14 (c) 21 (d) 8
  25. 25.Which fraction is greater: 7/11 or 1/4? (a) They are equal (b) 7/11 (c) 1/4
  26. 26.What is 3/4 of 48? (a) 37 (b) 48 (c) 36 (d) 12
  27. 27.Which fraction is greater: 4/5 or 5/7? (a) 4/5 (b) 5/7 (c) They are equal
  28. 28.Which fraction is greater: 1/6 or 1/4? (a) 1/4 (b) They are equal (c) 1/6
  29. 29.Which fraction is greater: 5/7 or 6/11? (a) They are equal (b) 6/11 (c) 5/7
  30. 30.What is 5/9 of 18? (a) 10 (b) 2 (c) 12 (d) 8
  31. 31.What is 2/3 of 15? (a) 5 (b) 15 (c) 10 (d) 11
  32. 32.What is 7/9 of 36? (a) 32 (b) 8 (c) 4 (d) 28
  33. 33.What is 2/5 of 60? (a) 24 (b) 36 (c) 25 (d) 12
  34. 34.What is 5/8 of 72? (a) 27 (b) 54 (c) 45 (d) 9
  35. 35.What is 5/7 of 56? (a) 16 (b) 48 (c) 40 (d) 8
  36. 36.4/7 + 1/2 = ? (a) 5/9 (b) 8/7 (c) 1 (d) 15/14
  37. 37.What is 4/9 of 36? (a) 16 (b) 17 (c) 20 (d) 4
  38. 38.What is 2/7 of 35? (a) 25 (b) 5 (c) 10 (d) 15
  39. 39.What is 6/7 of 42? (a) 42 (b) 6 (c) 37 (d) 36
  40. 40.What is 5/8 of 16? (a) 12 (b) 10 (c) 6 (d) 2

Answer key

  1. 4/9
  2. 37/35
  3. 53/35
  4. 11/10
  5. 1
  6. 23/18
  7. 3/4
  8. 5/8
  9. 8
  10. 14
  11. 17/12
  12. 4/7
  13. 9
  14. 6
  15. 9/11
  16. 5/9
  17. 1/3
  18. 1
  19. 9/10
  20. 3/4
  21. 7/5
  22. 9/14
  23. 2/3
  24. 7
  25. 7/11
  26. 36
  27. 4/5
  28. 1/4
  29. 5/7
  30. 10
  31. 10
  32. 28
  33. 24
  34. 45
  35. 40
  36. 15/14
  37. 16
  38. 10
  39. 36
  40. 10

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