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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 483 · 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 3/15 in its simplest form? (a) No (b) Yes
  2. 2.Is 20/35 in its simplest form? (a) No (b) Yes
  3. 3.Write 6/48 in its simplest form. =
  4. 4.Is 16/20 in its simplest form? (a) Yes (b) No
  5. 5.Write 32/72 in its simplest form. =
  6. 6.Is 6/30 in its simplest form? (a) No (b) Yes
  7. 7.Is 15/35 in its simplest form? (a) No (b) Yes
  8. 8.Is 2/9 in its simplest form? (a) No (b) Yes
  9. 9.Write 36/42 in its simplest form. =
  10. 10.What is the HCF of 4 and 18?
  11. 11.Write 30/54 in its simplest form. =
  12. 12.What is the HCF of 25 and 30?
  13. 13.Is 18/30 in its simplest form? (a) Yes (b) No
  14. 14.What is the HCF of 12 and 16?
  15. 15.Is 9/10 in its simplest form? (a) Yes (b) No
  16. 16.Is 2/7 in its simplest form? (a) No (b) Yes
  17. 17.What is the HCF of 35 and 40?
  18. 18.Is 4/10 in its simplest form? (a) Yes (b) No
  19. 19.What is the HCF of 16 and 28?
  20. 20.Write 9/81 in its simplest form. =
  21. 21.Write 32/40 in its simplest form. =
  22. 22.Write 45/81 in its simplest form. =
  23. 23.Is 30/48 in its simplest form? (a) Yes (b) No
  24. 24.Is 8/20 in its simplest form? (a) Yes (b) No
  25. 25.What is the HCF of 7 and 63?
  26. 26.What is the HCF of 36 and 45?
  27. 27.What is the HCF of 6 and 20?
  28. 28.Write 10/35 in its simplest form. =
  29. 29.What is the HCF of 9 and 72?
  30. 30.Write 4/12 in its simplest form. =
  31. 31.Is 15/21 in its simplest form? (a) No (b) Yes
  32. 32.Write 63/90 in its simplest form. =
  33. 33.Is 18/24 in its simplest form? (a) Yes (b) No
  34. 34.Write 3/27 in its simplest form. =
  35. 35.What is the HCF of 8 and 64?
  36. 36.What is the HCF of 30 and 48?
  37. 37.Is 7/9 in its simplest form? (a) No (b) Yes
  38. 38.Write 16/56 in its simplest form. =
  39. 39.Write 4/16 in its simplest form. =
  40. 40.What is the HCF of 8 and 72?

Answer key

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

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