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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 134 · 40 questions
TalentJR

The method (Divide by the HCF): Find the HCF (highest common factor) of the top and the bottom. Divide the top and the bottom by the HCF. If the HCF is 1, the fraction is already in its simplest form.

NameDateTime takenScore ___ / 40
  1. 1.What is the HCF of 2 and 4?
  2. 2.Is 3/12 in its simplest form? (a) Yes (b) No
  3. 3.What is the HCF of 24 and 42?
  4. 4.Is 4/5 in its simplest form? (a) Yes (b) No
  5. 5.Is 24/27 in its simplest form? (a) No (b) Yes
  6. 6.Is 8/28 in its simplest form? (a) Yes (b) No
  7. 7.Write 12/21 in its simplest form. =
  8. 8.What is the HCF of 12 and 27?
  9. 9.What is the HCF of 2 and 6?
  10. 10.Write 4/16 in its simplest form. =
  11. 11.Write 8/36 in its simplest form. =
  12. 12.What is the HCF of 49 and 63?
  13. 13.Is 2/12 in its simplest form? (a) Yes (b) No
  14. 14.Is 6/42 in its simplest form? (a) No (b) Yes
  15. 15.What is the HCF of 18 and 45?
  16. 16.Write 30/36 in its simplest form. =
  17. 17.Is 4/32 in its simplest form? (a) No (b) Yes
  18. 18.What is the HCF of 4 and 8?
  19. 19.What is the HCF of 8 and 64?
  20. 20.Write 6/42 in its simplest form. =
  21. 21.What is the HCF of 20 and 45?
  22. 22.Is 5/9 in its simplest form? (a) No (b) Yes
  23. 23.Write 27/45 in its simplest form. =
  24. 24.Is 5/8 in its simplest form? (a) No (b) Yes
  25. 25.What is the HCF of 6 and 30?
  26. 26.Write 18/81 in its simplest form. =
  27. 27.Write 3/30 in its simplest form. =
  28. 28.Write 3/9 in its simplest form. =
  29. 29.Is 2/3 in its simplest form? (a) No (b) Yes
  30. 30.Write 9/30 in its simplest form. =
  31. 31.Is 12/18 in its simplest form? (a) No (b) Yes
  32. 32.What is the HCF of 21 and 49?
  33. 33.Is 4/9 in its simplest form? (a) Yes (b) No
  34. 34.What is the HCF of 63 and 81?
  35. 35.Is 2/5 in its simplest form? (a) Yes (b) No
  36. 36.Is 6/36 in its simplest form? (a) Yes (b) No
  37. 37.What is the HCF of 42 and 49?
  38. 38.What is the HCF of 9 and 30?
  39. 39.Write 18/27 in its simplest form. =
  40. 40.Is 6/12 in its simplest form? (a) No (b) Yes

Answer key

  1. 2
  2. No
  3. 6
  4. Yes
  5. No
  6. No
  7. 4/7
  8. 3
  9. 2
  10. 1/4
  11. 2/9
  12. 7
  13. No
  14. No
  15. 9
  16. 5/6
  17. No
  18. 4
  19. 8
  20. 1/7
  21. 5
  22. Yes
  23. 3/5
  24. Yes
  25. 6
  26. 2/9
  27. 1/10
  28. 1/3
  29. Yes
  30. 3/10
  31. No
  32. 7
  33. Yes
  34. 9
  35. Yes
  36. No
  37. 7
  38. 3
  39. 2/3
  40. No

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