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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 809 · 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.Write 2/20 in its simplest form. =
  2. 2.Write 24/40 in its simplest form. =
  3. 3.Is 3/5 in its simplest form? (a) No (b) Yes
  4. 4.Write 15/18 in its simplest form. =
  5. 5.What is the HCF of 12 and 20?
  6. 6.What is the HCF of 10 and 45?
  7. 7.What is the HCF of 12 and 21?
  8. 8.Is 28/32 in its simplest form? (a) Yes (b) No
  9. 9.Is 5/30 in its simplest form? (a) No (b) Yes
  10. 10.Is 1/9 in its simplest form? (a) No (b) Yes
  11. 11.Is 15/21 in its simplest form? (a) Yes (b) No
  12. 12.Write 16/72 in its simplest form. =
  13. 13.Is 9/30 in its simplest form? (a) No (b) Yes
  14. 14.Is 9/12 in its simplest form? (a) Yes (b) No
  15. 15.Write 36/45 in its simplest form. =
  16. 16.Is 1/4 in its simplest form? (a) Yes (b) No
  17. 17.Write 10/12 in its simplest form. =
  18. 18.Write 9/72 in its simplest form. =
  19. 19.What is the HCF of 3 and 9?
  20. 20.Is 3/7 in its simplest form? (a) No (b) Yes
  21. 21.Write 4/24 in its simplest form. =
  22. 22.What is the HCF of 8 and 48?
  23. 23.Is 12/14 in its simplest form? (a) No (b) Yes
  24. 24.What is the HCF of 9 and 12?
  25. 25.Write 24/56 in its simplest form. =
  26. 26.What is the HCF of 27 and 36?
  27. 27.Is 1/2 in its simplest form? (a) No (b) Yes
  28. 28.What is the HCF of 28 and 49?
  29. 29.Is 1/3 in its simplest form? (a) No (b) Yes
  30. 30.What is the HCF of 2 and 18?
  31. 31.Write 12/28 in its simplest form. =
  32. 32.What is the HCF of 6 and 14?
  33. 33.What is the HCF of 24 and 54?
  34. 34.Write 8/40 in its simplest form. =
  35. 35.What is the HCF of 4 and 24?
  36. 36.Is 4/32 in its simplest form? (a) Yes (b) No
  37. 37.Write 8/56 in its simplest form. =
  38. 38.Is 3/10 in its simplest form? (a) No (b) Yes
  39. 39.Is 6/15 in its simplest form? (a) No (b) Yes
  40. 40.Write 16/18 in its simplest form. =

Answer key

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

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