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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 725 · 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 36 and 63?
  2. 2.Write 10/16 in its simplest form. =
  3. 3.Is 20/32 in its simplest form? (a) Yes (b) No
  4. 4.Write 42/60 in its simplest form. =
  5. 5.Is 15/25 in its simplest form? (a) Yes (b) No
  6. 6.What is the HCF of 15 and 27?
  7. 7.Write 7/42 in its simplest form. =
  8. 8.Write 12/54 in its simplest form. =
  9. 9.What is the HCF of 20 and 36?
  10. 10.What is the HCF of 3 and 9?
  11. 11.What is the HCF of 24 and 32?
  12. 12.Is 6/8 in its simplest form? (a) No (b) Yes
  13. 13.What is the HCF of 21 and 56?
  14. 14.Write 3/27 in its simplest form. =
  15. 15.Write 49/63 in its simplest form. =
  16. 16.Is 3/8 in its simplest form? (a) No (b) Yes
  17. 17.Write 18/45 in its simplest form. =
  18. 18.Is 2/14 in its simplest form? (a) Yes (b) No
  19. 19.What is the HCF of 2 and 20?
  20. 20.Is 4/9 in its simplest form? (a) Yes (b) No
  21. 21.Write 4/18 in its simplest form. =
  22. 22.Write 2/8 in its simplest form. =
  23. 23.Is 25/45 in its simplest form? (a) No (b) Yes
  24. 24.Is 7/10 in its simplest form? (a) Yes (b) No
  25. 25.Write 6/27 in its simplest form. =
  26. 26.Is 5/9 in its simplest form? (a) Yes (b) No
  27. 27.Write 10/45 in its simplest form. =
  28. 28.Write 21/49 in its simplest form. =
  29. 29.Is 3/10 in its simplest form? (a) No (b) Yes
  30. 30.What is the HCF of 2 and 12?
  31. 31.Write 2/16 in its simplest form. =
  32. 32.Write 45/72 in its simplest form. =
  33. 33.What is the HCF of 12 and 30?
  34. 34.Is 30/48 in its simplest form? (a) Yes (b) No
  35. 35.Write 8/24 in its simplest form. =
  36. 36.Is 12/14 in its simplest form? (a) No (b) Yes
  37. 37.What is the HCF of 9 and 81?
  38. 38.What is the HCF of 16 and 24?
  39. 39.Is 4/28 in its simplest form? (a) Yes (b) No
  40. 40.Write 16/20 in its simplest form. =

Answer key

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

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