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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 168 · 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.Is 9/21 in its simplest form? (a) No (b) Yes
  2. 2.Is 2/7 in its simplest form? (a) No (b) Yes
  3. 3.Is 5/9 in its simplest form? (a) No (b) Yes
  4. 4.Write 9/72 in its simplest form. =
  5. 5.Write 49/63 in its simplest form. =
  6. 6.What is the HCF of 56 and 80?
  7. 7.Is 15/24 in its simplest form? (a) Yes (b) No
  8. 8.Write 2/8 in its simplest form. =
  9. 9.Write 12/16 in its simplest form. =
  10. 10.What is the HCF of 24 and 27?
  11. 11.Write 15/24 in its simplest form. =
  12. 12.Is 2/3 in its simplest form? (a) Yes (b) No
  13. 13.Is 12/14 in its simplest form? (a) No (b) Yes
  14. 14.Is 2/16 in its simplest form? (a) No (b) Yes
  15. 15.Write 10/15 in its simplest form. =
  16. 16.Is 9/12 in its simplest form? (a) Yes (b) No
  17. 17.What is the HCF of 5 and 40?
  18. 18.Write 49/70 in its simplest form. =
  19. 19.Is 14/20 in its simplest form? (a) No (b) Yes
  20. 20.What is the HCF of 3 and 12?
  21. 21.Write 14/20 in its simplest form. =
  22. 22.What is the HCF of 8 and 12?
  23. 23.What is the HCF of 18 and 27?
  24. 24.Is 12/18 in its simplest form? (a) Yes (b) No
  25. 25.Write 32/40 in its simplest form. =
  26. 26.Write 16/20 in its simplest form. =
  27. 27.Is 5/8 in its simplest form? (a) Yes (b) No
  28. 28.Write 36/40 in its simplest form. =
  29. 29.Is 28/36 in its simplest form? (a) Yes (b) No
  30. 30.What is the HCF of 8 and 64?
  31. 31.What is the HCF of 28 and 32?
  32. 32.What is the HCF of 6 and 15?
  33. 33.Is 5/10 in its simplest form? (a) No (b) Yes
  34. 34.What is the HCF of 5 and 30?
  35. 35.Is 25/30 in its simplest form? (a) No (b) Yes
  36. 36.Is 12/30 in its simplest form? (a) No (b) Yes
  37. 37.What is the HCF of 6 and 30?
  38. 38.Is 24/30 in its simplest form? (a) No (b) Yes
  39. 39.Write 27/36 in its simplest form. =
  40. 40.Write 7/14 in its simplest form. =

Answer key

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

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