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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 272 · 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 32 and 72?
  2. 2.Is 1/4 in its simplest form? (a) No (b) Yes
  3. 3.Is 14/20 in its simplest form? (a) No (b) Yes
  4. 4.Write 2/6 in its simplest form. =
  5. 5.Is 16/36 in its simplest form? (a) Yes (b) No
  6. 6.Is 10/25 in its simplest form? (a) No (b) Yes
  7. 7.Write 10/12 in its simplest form. =
  8. 8.Write 12/15 in its simplest form. =
  9. 9.Is 1/3 in its simplest form? (a) No (b) Yes
  10. 10.Write 24/28 in its simplest form. =
  11. 11.Write 12/42 in its simplest form. =
  12. 12.Is 28/40 in its simplest form? (a) No (b) Yes
  13. 13.Write 7/35 in its simplest form. =
  14. 14.What is the HCF of 6 and 12?
  15. 15.Write 63/70 in its simplest form. =
  16. 16.Is 2/7 in its simplest form? (a) No (b) Yes
  17. 17.Is 36/42 in its simplest form? (a) Yes (b) No
  18. 18.Write 6/10 in its simplest form. =
  19. 19.Write 12/14 in its simplest form. =
  20. 20.What is the HCF of 5 and 15?
  21. 21.What is the HCF of 40 and 64?
  22. 22.What is the HCF of 42 and 49?
  23. 23.Is 4/9 in its simplest form? (a) Yes (b) No
  24. 24.Write 12/21 in its simplest form. =
  25. 25.Write 16/72 in its simplest form. =
  26. 26.What is the HCF of 6 and 8?
  27. 27.Write 16/56 in its simplest form. =
  28. 28.Is 24/28 in its simplest form? (a) No (b) Yes
  29. 29.Is 18/30 in its simplest form? (a) No (b) Yes
  30. 30.Write 3/15 in its simplest form. =
  31. 31.Is 4/8 in its simplest form? (a) No (b) Yes
  32. 32.What is the HCF of 9 and 45?
  33. 33.Is 5/50 in its simplest form? (a) Yes (b) No
  34. 34.What is the HCF of 56 and 64?
  35. 35.Is 4/12 in its simplest form? (a) Yes (b) No
  36. 36.Is 6/10 in its simplest form? (a) Yes (b) No
  37. 37.What is the HCF of 14 and 20?
  38. 38.Is 4/28 in its simplest form? (a) No (b) Yes
  39. 39.Is 1/6 in its simplest form? (a) No (b) Yes
  40. 40.Write 4/12 in its simplest form. =

Answer key

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

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