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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 184 · 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 7/8 in its simplest form? (a) No (b) Yes
  2. 2.What is the HCF of 45 and 63?
  3. 3.Is 8/9 in its simplest form? (a) No (b) Yes
  4. 4.What is the HCF of 16 and 28?
  5. 5.Write 16/56 in its simplest form. =
  6. 6.Write 9/30 in its simplest form. =
  7. 7.What is the HCF of 3 and 15?
  8. 8.Write 25/30 in its simplest form. =
  9. 9.Is 1/5 in its simplest form? (a) Yes (b) No
  10. 10.Write 49/70 in its simplest form. =
  11. 11.Write 36/42 in its simplest form. =
  12. 12.Is 5/7 in its simplest form? (a) No (b) Yes
  13. 13.Is 3/7 in its simplest form? (a) Yes (b) No
  14. 14.Write 7/35 in its simplest form. =
  15. 15.Is 1/8 in its simplest form? (a) Yes (b) No
  16. 16.Is 30/48 in its simplest form? (a) No (b) Yes
  17. 17.Write 42/60 in its simplest form. =
  18. 18.Is 9/24 in its simplest form? (a) No (b) Yes
  19. 19.Write 6/15 in its simplest form. =
  20. 20.What is the HCF of 35 and 40?
  21. 21.What is the HCF of 18 and 27?
  22. 22.What is the HCF of 14 and 21?
  23. 23.What is the HCF of 12 and 42?
  24. 24.Is 2/3 in its simplest form? (a) Yes (b) No
  25. 25.What is the HCF of 6 and 18?
  26. 26.Is 1/3 in its simplest form? (a) Yes (b) No
  27. 27.What is the HCF of 6 and 24?
  28. 28.What is the HCF of 7 and 21?
  29. 29.Is 15/35 in its simplest form? (a) No (b) Yes
  30. 30.Is 1/9 in its simplest form? (a) Yes (b) No
  31. 31.What is the HCF of 21 and 28?
  32. 32.Is 5/10 in its simplest form? (a) Yes (b) No
  33. 33.Write 15/24 in its simplest form. =
  34. 34.Write 9/24 in its simplest form. =
  35. 35.What is the HCF of 6 and 54?
  36. 36.Write 12/15 in its simplest form. =
  37. 37.What is the HCF of 49 and 56?
  38. 38.What is the HCF of 35 and 42?
  39. 39.Is 3/8 in its simplest form? (a) No (b) Yes
  40. 40.Write 12/16 in its simplest form. =

Answer key

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

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