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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 756 · 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 21 and 28?
  2. 2.What is the HCF of 6 and 9?
  3. 3.What is the HCF of 35 and 45?
  4. 4.Is 54/60 in its simplest form? (a) Yes (b) No
  5. 5.What is the HCF of 12 and 21?
  6. 6.Write 6/60 in its simplest form. =
  7. 7.Is 6/12 in its simplest form? (a) No (b) Yes
  8. 8.Write 24/27 in its simplest form. =
  9. 9.Write 15/35 in its simplest form. =
  10. 10.What is the HCF of 3 and 9?
  11. 11.Is 6/7 in its simplest form? (a) Yes (b) No
  12. 12.Write 12/30 in its simplest form. =
  13. 13.What is the HCF of 7 and 14?
  14. 14.Write 16/18 in its simplest form. =
  15. 15.Is 1/6 in its simplest form? (a) No (b) Yes
  16. 16.Is 12/20 in its simplest form? (a) No (b) Yes
  17. 17.What is the HCF of 6 and 12?
  18. 18.Is 35/40 in its simplest form? (a) No (b) Yes
  19. 19.What is the HCF of 63 and 70?
  20. 20.What is the HCF of 4 and 16?
  21. 21.What is the HCF of 4 and 18?
  22. 22.Is 4/16 in its simplest form? (a) No (b) Yes
  23. 23.Is 12/42 in its simplest form? (a) No (b) Yes
  24. 24.Is 2/14 in its simplest form? (a) Yes (b) No
  25. 25.What is the HCF of 3 and 12?
  26. 26.What is the HCF of 18 and 30?
  27. 27.Write 4/12 in its simplest form. =
  28. 28.Is 12/32 in its simplest form? (a) No (b) Yes
  29. 29.Write 16/28 in its simplest form. =
  30. 30.What is the HCF of 10 and 35?
  31. 31.What is the HCF of 28 and 63?
  32. 32.What is the HCF of 9 and 36?
  33. 33.Write 16/56 in its simplest form. =
  34. 34.What is the HCF of 72 and 80?
  35. 35.Write 12/40 in its simplest form. =
  36. 36.Write 40/72 in its simplest form. =
  37. 37.Is 5/6 in its simplest form? (a) No (b) Yes
  38. 38.Is 35/50 in its simplest form? (a) Yes (b) No
  39. 39.Write 54/60 in its simplest form. =
  40. 40.What is the HCF of 10 and 16?

Answer key

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

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