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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 883 · 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.Is 12/54 in its simplest form? (a) Yes (b) No
  2. 2.Write 7/42 in its simplest form. =
  3. 3.Is 9/10 in its simplest form? (a) Yes (b) No
  4. 4.What is the HCF of 18 and 48?
  5. 5.Write 12/27 in its simplest form. =
  6. 6.Is 2/9 in its simplest form? (a) No (b) Yes
  7. 7.Is 3/12 in its simplest form? (a) No (b) Yes
  8. 8.Is 40/45 in its simplest form? (a) Yes (b) No
  9. 9.Write 25/30 in its simplest form. =
  10. 10.Write 8/48 in its simplest form. =
  11. 11.Write 9/36 in its simplest form. =
  12. 12.Write 8/56 in its simplest form. =
  13. 13.Write 35/40 in its simplest form. =
  14. 14.Is 12/27 in its simplest form? (a) Yes (b) No
  15. 15.Write 24/54 in its simplest form. =
  16. 16.Write 35/63 in its simplest form. =
  17. 17.What is the HCF of 24 and 40?
  18. 18.What is the HCF of 15 and 18?
  19. 19.Is 21/27 in its simplest form? (a) Yes (b) No
  20. 20.Write 45/72 in its simplest form. =
  21. 21.What is the HCF of 12 and 30?
  22. 22.What is the HCF of 54 and 60?
  23. 23.Is 16/18 in its simplest form? (a) Yes (b) No
  24. 24.Is 5/8 in its simplest form? (a) Yes (b) No
  25. 25.Write 3/30 in its simplest form. =
  26. 26.Write 4/6 in its simplest form. =
  27. 27.Is 8/36 in its simplest form? (a) No (b) Yes
  28. 28.Is 2/10 in its simplest form? (a) No (b) Yes
  29. 29.Is 36/42 in its simplest form? (a) Yes (b) No
  30. 30.Is 1/3 in its simplest form? (a) Yes (b) No
  31. 31.Is 6/20 in its simplest form? (a) No (b) Yes
  32. 32.What is the HCF of 40 and 64?
  33. 33.What is the HCF of 2 and 8?
  34. 34.Is 12/30 in its simplest form? (a) Yes (b) No
  35. 35.What is the HCF of 18 and 63?
  36. 36.Is 1/2 in its simplest form? (a) No (b) Yes
  37. 37.Is 25/45 in its simplest form? (a) Yes (b) No
  38. 38.What is the HCF of 21 and 27?
  39. 39.Write 36/63 in its simplest form. =
  40. 40.What is the HCF of 15 and 40?

Answer key

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

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