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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 621 · 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 6 and 27?
  2. 2.Write 18/42 in its simplest form. =
  3. 3.Write 64/72 in its simplest form. =
  4. 4.What is the HCF of 18 and 63?
  5. 5.Write 16/36 in its simplest form. =
  6. 6.Write 40/48 in its simplest form. =
  7. 7.Is 1/9 in its simplest form? (a) No (b) Yes
  8. 8.What is the HCF of 40 and 64?
  9. 9.Write 16/28 in its simplest form. =
  10. 10.Write 21/35 in its simplest form. =
  11. 11.What is the HCF of 24 and 40?
  12. 12.Write 5/35 in its simplest form. =
  13. 13.What is the HCF of 28 and 40?
  14. 14.Write 6/14 in its simplest form. =
  15. 15.Write 14/49 in its simplest form. =
  16. 16.What is the HCF of 12 and 16?
  17. 17.Is 5/10 in its simplest form? (a) Yes (b) No
  18. 18.What is the HCF of 81 and 90?
  19. 19.What is the HCF of 8 and 48?
  20. 20.What is the HCF of 12 and 27?
  21. 21.Is 12/14 in its simplest form? (a) No (b) Yes
  22. 22.Write 6/8 in its simplest form. =
  23. 23.What is the HCF of 36 and 81?
  24. 24.Is 10/15 in its simplest form? (a) No (b) Yes
  25. 25.What is the HCF of 32 and 40?
  26. 26.Write 8/48 in its simplest form. =
  27. 27.What is the HCF of 72 and 81?
  28. 28.Is 6/9 in its simplest form? (a) Yes (b) No
  29. 29.Is 5/15 in its simplest form? (a) Yes (b) No
  30. 30.What is the HCF of 35 and 56?
  31. 31.Write 15/24 in its simplest form. =
  32. 32.What is the HCF of 27 and 90?
  33. 33.Is 24/54 in its simplest form? (a) No (b) Yes
  34. 34.Is 3/5 in its simplest form? (a) No (b) Yes
  35. 35.Is 4/6 in its simplest form? (a) No (b) Yes
  36. 36.Write 6/9 in its simplest form. =
  37. 37.Write 25/35 in its simplest form. =
  38. 38.Is 6/18 in its simplest form? (a) Yes (b) No
  39. 39.What is the HCF of 5 and 30?
  40. 40.Write 18/27 in its simplest form. =

Answer key

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

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