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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 720 · 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 3 and 9?
  2. 2.What is the HCF of 7 and 28?
  3. 3.Is 4/7 in its simplest form? (a) Yes (b) No
  4. 4.Is 2/18 in its simplest form? (a) Yes (b) No
  5. 5.What is the HCF of 8 and 80?
  6. 6.Write 8/16 in its simplest form. =
  7. 7.Write 12/40 in its simplest form. =
  8. 8.What is the HCF of 27 and 63?
  9. 9.Is 30/48 in its simplest form? (a) No (b) Yes
  10. 10.Write 8/24 in its simplest form. =
  11. 11.Is 5/35 in its simplest form? (a) Yes (b) No
  12. 12.Write 4/36 in its simplest form. =
  13. 13.Is 8/12 in its simplest form? (a) No (b) Yes
  14. 14.What is the HCF of 4 and 18?
  15. 15.Write 3/18 in its simplest form. =
  16. 16.Write 9/27 in its simplest form. =
  17. 17.What is the HCF of 9 and 81?
  18. 18.What is the HCF of 5 and 50?
  19. 19.Is 28/32 in its simplest form? (a) No (b) Yes
  20. 20.Write 35/49 in its simplest form. =
  21. 21.Write 2/12 in its simplest form. =
  22. 22.Write 12/14 in its simplest form. =
  23. 23.Write 16/40 in its simplest form. =
  24. 24.Is 3/24 in its simplest form? (a) No (b) Yes
  25. 25.Is 15/25 in its simplest form? (a) No (b) Yes
  26. 26.Is 4/5 in its simplest form? (a) No (b) Yes
  27. 27.What is the HCF of 16 and 28?
  28. 28.What is the HCF of 45 and 81?
  29. 29.Is 35/45 in its simplest form? (a) No (b) Yes
  30. 30.What is the HCF of 10 and 16?
  31. 31.What is the HCF of 9 and 21?
  32. 32.What is the HCF of 6 and 30?
  33. 33.Write 25/35 in its simplest form. =
  34. 34.What is the HCF of 49 and 56?
  35. 35.Is 48/54 in its simplest form? (a) No (b) Yes
  36. 36.Write 5/20 in its simplest form. =
  37. 37.Write 9/45 in its simplest form. =
  38. 38.Write 12/28 in its simplest form. =
  39. 39.Write 6/10 in its simplest form. =
  40. 40.Write 21/28 in its simplest form. =

Answer key

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

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