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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 403 · 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 10/16 in its simplest form? (a) No (b) Yes
  2. 2.Is 1/5 in its simplest form? (a) Yes (b) No
  3. 3.Is 3/18 in its simplest form? (a) No (b) Yes
  4. 4.What is the HCF of 36 and 42?
  5. 5.Is 2/10 in its simplest form? (a) Yes (b) No
  6. 6.What is the HCF of 49 and 63?
  7. 7.What is the HCF of 4 and 20?
  8. 8.Write 63/70 in its simplest form. =
  9. 9.Write 6/24 in its simplest form. =
  10. 10.Is 8/18 in its simplest form? (a) No (b) Yes
  11. 11.Is 12/42 in its simplest form? (a) No (b) Yes
  12. 12.Write 35/56 in its simplest form. =
  13. 13.What is the HCF of 4 and 8?
  14. 14.What is the HCF of 7 and 49?
  15. 15.What is the HCF of 8 and 64?
  16. 16.Write 2/8 in its simplest form. =
  17. 17.Is 2/9 in its simplest form? (a) Yes (b) No
  18. 18.Write 9/18 in its simplest form. =
  19. 19.What is the HCF of 24 and 27?
  20. 20.Is 5/15 in its simplest form? (a) Yes (b) No
  21. 21.Write 4/24 in its simplest form. =
  22. 22.Is 9/10 in its simplest form? (a) Yes (b) No
  23. 23.What is the HCF of 10 and 15?
  24. 24.Write 4/36 in its simplest form. =
  25. 25.Write 3/9 in its simplest form. =
  26. 26.Write 12/16 in its simplest form. =
  27. 27.Write 4/16 in its simplest form. =
  28. 28.Write 27/30 in its simplest form. =
  29. 29.What is the HCF of 7 and 14?
  30. 30.What is the HCF of 64 and 72?
  31. 31.Is 15/40 in its simplest form? (a) Yes (b) No
  32. 32.What is the HCF of 72 and 80?
  33. 33.Is 4/5 in its simplest form? (a) No (b) Yes
  34. 34.What is the HCF of 7 and 21?
  35. 35.Write 32/36 in its simplest form. =
  36. 36.What is the HCF of 42 and 60?
  37. 37.What is the HCF of 8 and 56?
  38. 38.What is the HCF of 15 and 20?
  39. 39.Write 20/25 in its simplest form. =
  40. 40.What is the HCF of 2 and 12?

Answer key

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

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