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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 277 · 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 54/60 in its simplest form? (a) Yes (b) No
  2. 2.Write 2/10 in its simplest form. =
  3. 3.What is the HCF of 36 and 40?
  4. 4.Write 7/21 in its simplest form. =
  5. 5.What is the HCF of 24 and 30?
  6. 6.Write 10/14 in its simplest form. =
  7. 7.Write 45/54 in its simplest form. =
  8. 8.Is 1/5 in its simplest form? (a) No (b) Yes
  9. 9.Is 8/9 in its simplest form? (a) No (b) Yes
  10. 10.Is 3/10 in its simplest form? (a) No (b) Yes
  11. 11.Is 18/48 in its simplest form? (a) Yes (b) No
  12. 12.Is 12/40 in its simplest form? (a) No (b) Yes
  13. 13.Is 21/24 in its simplest form? (a) Yes (b) No
  14. 14.Write 8/10 in its simplest form. =
  15. 15.Is 1/9 in its simplest form? (a) Yes (b) No
  16. 16.Is 12/20 in its simplest form? (a) Yes (b) No
  17. 17.Write 24/42 in its simplest form. =
  18. 18.Write 24/80 in its simplest form. =
  19. 19.What is the HCF of 56 and 80?
  20. 20.What is the HCF of 9 and 81?
  21. 21.What is the HCF of 9 and 45?
  22. 22.Write 6/9 in its simplest form. =
  23. 23.What is the HCF of 4 and 16?
  24. 24.Write 16/20 in its simplest form. =
  25. 25.Write 9/54 in its simplest form. =
  26. 26.What is the HCF of 5 and 20?
  27. 27.Write 3/21 in its simplest form. =
  28. 28.What is the HCF of 3 and 9?
  29. 29.Write 45/50 in its simplest form. =
  30. 30.What is the HCF of 30 and 35?
  31. 31.What is the HCF of 8 and 18?
  32. 32.Write 20/45 in its simplest form. =
  33. 33.Is 2/5 in its simplest form? (a) No (b) Yes
  34. 34.Write 28/36 in its simplest form. =
  35. 35.What is the HCF of 15 and 21?
  36. 36.Write 49/56 in its simplest form. =
  37. 37.What is the HCF of 14 and 63?
  38. 38.What is the HCF of 54 and 60?
  39. 39.What is the HCF of 36 and 45?
  40. 40.Write 3/9 in its simplest form. =

Answer key

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

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