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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 25 · 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 2/16 in its simplest form? (a) No (b) Yes
  2. 2.Is 1/7 in its simplest form? (a) Yes (b) No
  3. 3.Is 3/5 in its simplest form? (a) Yes (b) No
  4. 4.What is the HCF of 54 and 63?
  5. 5.Is 4/24 in its simplest form? (a) Yes (b) No
  6. 6.What is the HCF of 9 and 63?
  7. 7.Write 18/24 in its simplest form. =
  8. 8.Write 15/24 in its simplest form. =
  9. 9.What is the HCF of 12 and 27?
  10. 10.Is 20/36 in its simplest form? (a) Yes (b) No
  11. 11.Write 6/54 in its simplest form. =
  12. 12.Is 5/9 in its simplest form? (a) No (b) Yes
  13. 13.Is 30/35 in its simplest form? (a) No (b) Yes
  14. 14.What is the HCF of 8 and 28?
  15. 15.What is the HCF of 18 and 81?
  16. 16.What is the HCF of 5 and 20?
  17. 17.Is 6/18 in its simplest form? (a) Yes (b) No
  18. 18.What is the HCF of 4 and 28?
  19. 19.What is the HCF of 10 and 25?
  20. 20.Write 12/20 in its simplest form. =
  21. 21.Write 15/27 in its simplest form. =
  22. 22.Is 6/7 in its simplest form? (a) No (b) Yes
  23. 23.What is the HCF of 32 and 56?
  24. 24.Write 14/35 in its simplest form. =
  25. 25.What is the HCF of 9 and 24?
  26. 26.Is 2/9 in its simplest form? (a) No (b) Yes
  27. 27.Is 6/36 in its simplest form? (a) No (b) Yes
  28. 28.Is 9/12 in its simplest form? (a) No (b) Yes
  29. 29.Is 8/9 in its simplest form? (a) Yes (b) No
  30. 30.What is the HCF of 12 and 14?
  31. 31.Is 3/4 in its simplest form? (a) Yes (b) No
  32. 32.Is 3/7 in its simplest form? (a) Yes (b) No
  33. 33.Write 12/15 in its simplest form. =
  34. 34.What is the HCF of 3 and 12?
  35. 35.Is 3/24 in its simplest form? (a) Yes (b) No
  36. 36.Is 4/5 in its simplest form? (a) No (b) Yes
  37. 37.What is the HCF of 15 and 35?
  38. 38.Write 3/6 in its simplest form. =
  39. 39.What is the HCF of 8 and 20?
  40. 40.Write 18/45 in its simplest form. =

Answer key

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

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