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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 344 · 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.Write 2/10 in its simplest form. =
  2. 2.Write 8/24 in its simplest form. =
  3. 3.Write 4/10 in its simplest form. =
  4. 4.Write 6/8 in its simplest form. =
  5. 5.What is the HCF of 10 and 12?
  6. 6.What is the HCF of 40 and 56?
  7. 7.What is the HCF of 18 and 81?
  8. 8.Write 35/40 in its simplest form. =
  9. 9.What is the HCF of 30 and 48?
  10. 10.What is the HCF of 9 and 27?
  11. 11.What is the HCF of 16 and 36?
  12. 12.Is 16/28 in its simplest form? (a) Yes (b) No
  13. 13.What is the HCF of 12 and 20?
  14. 14.Is 1/9 in its simplest form? (a) No (b) Yes
  15. 15.What is the HCF of 30 and 54?
  16. 16.Write 21/70 in its simplest form. =
  17. 17.What is the HCF of 3 and 27?
  18. 18.What is the HCF of 4 and 20?
  19. 19.Write 36/45 in its simplest form. =
  20. 20.Write 9/12 in its simplest form. =
  21. 21.Is 6/54 in its simplest form? (a) Yes (b) No
  22. 22.What is the HCF of 28 and 63?
  23. 23.Is 4/5 in its simplest form? (a) Yes (b) No
  24. 24.Is 36/42 in its simplest form? (a) Yes (b) No
  25. 25.Write 40/48 in its simplest form. =
  26. 26.Write 63/72 in its simplest form. =
  27. 27.Is 5/8 in its simplest form? (a) No (b) Yes
  28. 28.Write 15/18 in its simplest form. =
  29. 29.Write 2/8 in its simplest form. =
  30. 30.Write 35/42 in its simplest form. =
  31. 31.Is 3/27 in its simplest form? (a) No (b) Yes
  32. 32.Write 15/27 in its simplest form. =
  33. 33.Is 2/3 in its simplest form? (a) Yes (b) No
  34. 34.Is 15/35 in its simplest form? (a) Yes (b) No
  35. 35.What is the HCF of 18 and 30?
  36. 36.Write 6/60 in its simplest form. =
  37. 37.Is 4/16 in its simplest form? (a) Yes (b) No
  38. 38.What is the HCF of 16 and 20?
  39. 39.Write 14/18 in its simplest form. =
  40. 40.What is the HCF of 2 and 4?

Answer key

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

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