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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 4 · 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 24/27 in its simplest form. =
  2. 2.Write 3/27 in its simplest form. =
  3. 3.Is 2/7 in its simplest form? (a) Yes (b) No
  4. 4.Write 5/45 in its simplest form. =
  5. 5.Is 7/8 in its simplest form? (a) No (b) Yes
  6. 6.What is the HCF of 25 and 40?
  7. 7.Is 16/18 in its simplest form? (a) No (b) Yes
  8. 8.Write 8/72 in its simplest form. =
  9. 9.What is the HCF of 6 and 20?
  10. 10.What is the HCF of 6 and 14?
  11. 11.What is the HCF of 8 and 24?
  12. 12.What is the HCF of 81 and 90?
  13. 13.Write 16/40 in its simplest form. =
  14. 14.Is 2/12 in its simplest form? (a) No (b) Yes
  15. 15.What is the HCF of 3 and 15?
  16. 16.What is the HCF of 3 and 30?
  17. 17.Write 27/30 in its simplest form. =
  18. 18.Write 10/18 in its simplest form. =
  19. 19.What is the HCF of 64 and 72?
  20. 20.Is 6/21 in its simplest form? (a) Yes (b) No
  21. 21.Write 6/9 in its simplest form. =
  22. 22.What is the HCF of 45 and 72?
  23. 23.Is 15/27 in its simplest form? (a) Yes (b) No
  24. 24.What is the HCF of 24 and 28?
  25. 25.Write 6/36 in its simplest form. =
  26. 26.Write 9/12 in its simplest form. =
  27. 27.Is 21/30 in its simplest form? (a) No (b) Yes
  28. 28.What is the HCF of 28 and 35?
  29. 29.What is the HCF of 6 and 60?
  30. 30.Is 3/7 in its simplest form? (a) No (b) Yes
  31. 31.Write 7/42 in its simplest form. =
  32. 32.Is 3/9 in its simplest form? (a) Yes (b) No
  33. 33.What is the HCF of 28 and 49?
  34. 34.What is the HCF of 30 and 54?
  35. 35.Write 30/54 in its simplest form. =
  36. 36.What is the HCF of 15 and 24?
  37. 37.Write 6/8 in its simplest form. =
  38. 38.Is 6/18 in its simplest form? (a) No (b) Yes
  39. 39.What is the HCF of 32 and 36?
  40. 40.Write 6/24 in its simplest form. =

Answer key

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

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