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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 724 · 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 21 and 30?
  2. 2.What is the HCF of 42 and 49?
  3. 3.What is the HCF of 56 and 72?
  4. 4.Write 7/56 in its simplest form. =
  5. 5.Is 36/40 in its simplest form? (a) No (b) Yes
  6. 6.Write 6/14 in its simplest form. =
  7. 7.Write 20/24 in its simplest form. =
  8. 8.Is 6/7 in its simplest form? (a) No (b) Yes
  9. 9.What is the HCF of 24 and 54?
  10. 10.Write 8/32 in its simplest form. =
  11. 11.Is 6/54 in its simplest form? (a) Yes (b) No
  12. 12.Is 2/5 in its simplest form? (a) Yes (b) No
  13. 13.Write 16/72 in its simplest form. =
  14. 14.Write 18/27 in its simplest form. =
  15. 15.What is the HCF of 14 and 18?
  16. 16.Is 16/28 in its simplest form? (a) No (b) Yes
  17. 17.Is 30/54 in its simplest form? (a) No (b) Yes
  18. 18.What is the HCF of 4 and 24?
  19. 19.What is the HCF of 6 and 12?
  20. 20.What is the HCF of 9 and 15?
  21. 21.Write 42/48 in its simplest form. =
  22. 22.Is 28/32 in its simplest form? (a) No (b) Yes
  23. 23.Write 35/56 in its simplest form. =
  24. 24.Is 14/20 in its simplest form? (a) No (b) Yes
  25. 25.Write 24/40 in its simplest form. =
  26. 26.What is the HCF of 21 and 28?
  27. 27.What is the HCF of 24 and 56?
  28. 28.What is the HCF of 6 and 27?
  29. 29.Is 12/30 in its simplest form? (a) No (b) Yes
  30. 30.Write 45/81 in its simplest form. =
  31. 31.Is 2/12 in its simplest form? (a) Yes (b) No
  32. 32.Is 12/28 in its simplest form? (a) No (b) Yes
  33. 33.Is 1/4 in its simplest form? (a) Yes (b) No
  34. 34.Is 12/16 in its simplest form? (a) No (b) Yes
  35. 35.What is the HCF of 45 and 63?
  36. 36.Write 6/30 in its simplest form. =
  37. 37.Is 54/60 in its simplest form? (a) No (b) Yes
  38. 38.Write 21/27 in its simplest form. =
  39. 39.What is the HCF of 45 and 72?
  40. 40.Write 40/64 in its simplest form. =

Answer key

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

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