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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 562 · 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 3 and 30?
  2. 2.What is the HCF of 10 and 14?
  3. 3.What is the HCF of 9 and 15?
  4. 4.Is 3/4 in its simplest form? (a) Yes (b) No
  5. 5.Write 4/20 in its simplest form. =
  6. 6.Is 4/18 in its simplest form? (a) Yes (b) No
  7. 7.Is 21/27 in its simplest form? (a) No (b) Yes
  8. 8.Write 7/42 in its simplest form. =
  9. 9.What is the HCF of 7 and 28?
  10. 10.What is the HCF of 10 and 16?
  11. 11.What is the HCF of 12 and 27?
  12. 12.Write 14/49 in its simplest form. =
  13. 13.Write 18/60 in its simplest form. =
  14. 14.Write 4/10 in its simplest form. =
  15. 15.Write 6/48 in its simplest form. =
  16. 16.Write 63/90 in its simplest form. =
  17. 17.Write 16/56 in its simplest form. =
  18. 18.Write 9/81 in its simplest form. =
  19. 19.Write 10/45 in its simplest form. =
  20. 20.Is 10/25 in its simplest form? (a) Yes (b) No
  21. 21.What is the HCF of 24 and 64?
  22. 22.Write 12/28 in its simplest form. =
  23. 23.What is the HCF of 25 and 45?
  24. 24.What is the HCF of 12 and 30?
  25. 25.What is the HCF of 6 and 20?
  26. 26.Write 6/15 in its simplest form. =
  27. 27.What is the HCF of 3 and 21?
  28. 28.Is 12/54 in its simplest form? (a) No (b) Yes
  29. 29.Is 3/10 in its simplest form? (a) No (b) Yes
  30. 30.What is the HCF of 20 and 32?
  31. 31.Is 20/24 in its simplest form? (a) No (b) Yes
  32. 32.What is the HCF of 15 and 24?
  33. 33.Is 8/18 in its simplest form? (a) Yes (b) No
  34. 34.What is the HCF of 8 and 80?
  35. 35.Is 5/6 in its simplest form? (a) No (b) Yes
  36. 36.Write 5/35 in its simplest form. =
  37. 37.Is 6/48 in its simplest form? (a) Yes (b) No
  38. 38.What is the HCF of 7 and 70?
  39. 39.Is 6/60 in its simplest form? (a) Yes (b) No
  40. 40.What is the HCF of 5 and 30?

Answer key

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

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