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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 383 · 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 9/63 in its simplest form. =
  2. 2.Write 35/42 in its simplest form. =
  3. 3.Write 9/18 in its simplest form. =
  4. 4.Is 2/7 in its simplest form? (a) Yes (b) No
  5. 5.What is the HCF of 2 and 20?
  6. 6.Is 25/45 in its simplest form? (a) No (b) Yes
  7. 7.What is the HCF of 6 and 20?
  8. 8.Write 27/90 in its simplest form. =
  9. 9.Write 8/18 in its simplest form. =
  10. 10.Is 1/8 in its simplest form? (a) No (b) Yes
  11. 11.Is 6/60 in its simplest form? (a) No (b) Yes
  12. 12.Is 4/9 in its simplest form? (a) No (b) Yes
  13. 13.What is the HCF of 24 and 28?
  14. 14.Write 9/54 in its simplest form. =
  15. 15.What is the HCF of 4 and 18?
  16. 16.Is 3/4 in its simplest form? (a) No (b) Yes
  17. 17.What is the HCF of 24 and 32?
  18. 18.What is the HCF of 8 and 24?
  19. 19.Is 20/35 in its simplest form? (a) Yes (b) No
  20. 20.What is the HCF of 24 and 30?
  21. 21.What is the HCF of 40 and 64?
  22. 22.What is the HCF of 18 and 60?
  23. 23.Is 3/5 in its simplest form? (a) No (b) Yes
  24. 24.Is 1/7 in its simplest form? (a) No (b) Yes
  25. 25.What is the HCF of 25 and 40?
  26. 26.Is 16/36 in its simplest form? (a) No (b) Yes
  27. 27.Is 7/9 in its simplest form? (a) No (b) Yes
  28. 28.Is 3/8 in its simplest form? (a) Yes (b) No
  29. 29.What is the HCF of 7 and 63?
  30. 30.Is 1/5 in its simplest form? (a) No (b) Yes
  31. 31.Is 12/30 in its simplest form? (a) Yes (b) No
  32. 32.Write 16/56 in its simplest form. =
  33. 33.What is the HCF of 45 and 54?
  34. 34.What is the HCF of 3 and 18?
  35. 35.Write 16/24 in its simplest form. =
  36. 36.Write 3/21 in its simplest form. =
  37. 37.Is 6/48 in its simplest form? (a) No (b) Yes
  38. 38.What is the HCF of 28 and 63?
  39. 39.Write 12/16 in its simplest form. =
  40. 40.Write 15/50 in its simplest form. =

Answer key

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

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