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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 633 · 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 1/3 in its simplest form? (a) No (b) Yes
  2. 2.Is 30/35 in its simplest form? (a) Yes (b) No
  3. 3.Write 40/45 in its simplest form. =
  4. 4.Write 7/14 in its simplest form. =
  5. 5.Is 3/4 in its simplest form? (a) Yes (b) No
  6. 6.Is 6/7 in its simplest form? (a) No (b) Yes
  7. 7.Is 18/48 in its simplest form? (a) Yes (b) No
  8. 8.Write 7/35 in its simplest form. =
  9. 9.What is the HCF of 21 and 28?
  10. 10.What is the HCF of 24 and 40?
  11. 11.What is the HCF of 3 and 18?
  12. 12.Is 1/8 in its simplest form? (a) No (b) Yes
  13. 13.Is 20/28 in its simplest form? (a) Yes (b) No
  14. 14.Write 28/36 in its simplest form. =
  15. 15.Write 54/60 in its simplest form. =
  16. 16.Is 1/7 in its simplest form? (a) No (b) Yes
  17. 17.Write 12/32 in its simplest form. =
  18. 18.Write 4/40 in its simplest form. =
  19. 19.What is the HCF of 35 and 49?
  20. 20.Is 4/28 in its simplest form? (a) No (b) Yes
  21. 21.What is the HCF of 8 and 24?
  22. 22.Is 1/10 in its simplest form? (a) Yes (b) No
  23. 23.What is the HCF of 40 and 45?
  24. 24.What is the HCF of 10 and 16?
  25. 25.Write 4/20 in its simplest form. =
  26. 26.What is the HCF of 3 and 6?
  27. 27.Is 1/2 in its simplest form? (a) No (b) Yes
  28. 28.What is the HCF of 40 and 48?
  29. 29.Write 4/12 in its simplest form. =
  30. 30.Write 16/72 in its simplest form. =
  31. 31.Write 18/45 in its simplest form. =
  32. 32.Is 7/9 in its simplest form? (a) Yes (b) No
  33. 33.Write 27/72 in its simplest form. =
  34. 34.Write 63/70 in its simplest form. =
  35. 35.Write 20/45 in its simplest form. =
  36. 36.Is 42/48 in its simplest form? (a) Yes (b) No
  37. 37.Write 64/72 in its simplest form. =
  38. 38.What is the HCF of 2 and 4?
  39. 39.What is the HCF of 18 and 20?
  40. 40.Write 40/48 in its simplest form. =

Answer key

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

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