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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 175 · 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 24 and 80?
  2. 2.Write 3/27 in its simplest form. =
  3. 3.What is the HCF of 8 and 32?
  4. 4.What is the HCF of 12 and 28?
  5. 5.Write 8/32 in its simplest form. =
  6. 6.What is the HCF of 27 and 45?
  7. 7.Is 12/42 in its simplest form? (a) No (b) Yes
  8. 8.Write 2/4 in its simplest form. =
  9. 9.Write 6/18 in its simplest form. =
  10. 10.What is the HCF of 40 and 45?
  11. 11.Is 9/10 in its simplest form? (a) No (b) Yes
  12. 12.Is 14/16 in its simplest form? (a) Yes (b) No
  13. 13.What is the HCF of 49 and 56?
  14. 14.Write 18/45 in its simplest form. =
  15. 15.What is the HCF of 12 and 20?
  16. 16.Is 4/9 in its simplest form? (a) No (b) Yes
  17. 17.Is 5/20 in its simplest form? (a) No (b) Yes
  18. 18.Is 5/7 in its simplest form? (a) No (b) Yes
  19. 19.Is 12/20 in its simplest form? (a) Yes (b) No
  20. 20.Is 6/12 in its simplest form? (a) No (b) Yes
  21. 21.What is the HCF of 27 and 90?
  22. 22.Write 36/63 in its simplest form. =
  23. 23.Write 9/54 in its simplest form. =
  24. 24.Is 35/40 in its simplest form? (a) Yes (b) No
  25. 25.Is 2/10 in its simplest form? (a) No (b) Yes
  26. 26.What is the HCF of 7 and 49?
  27. 27.What is the HCF of 3 and 21?
  28. 28.Is 4/6 in its simplest form? (a) No (b) Yes
  29. 29.Is 4/5 in its simplest form? (a) No (b) Yes
  30. 30.Write 63/70 in its simplest form. =
  31. 31.Write 36/40 in its simplest form. =
  32. 32.Is 3/4 in its simplest form? (a) Yes (b) No
  33. 33.Write 18/21 in its simplest form. =
  34. 34.Is 6/7 in its simplest form? (a) No (b) Yes
  35. 35.What is the HCF of 14 and 18?
  36. 36.What is the HCF of 4 and 24?
  37. 37.Write 24/32 in its simplest form. =
  38. 38.Is 1/2 in its simplest form? (a) No (b) Yes
  39. 39.Write 6/30 in its simplest form. =
  40. 40.What is the HCF of 18 and 30?

Answer key

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

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