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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 414 · 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 36/42 in its simplest form. =
  2. 2.Write 9/45 in its simplest form. =
  3. 3.Is 24/54 in its simplest form? (a) No (b) Yes
  4. 4.Is 12/14 in its simplest form? (a) Yes (b) No
  5. 5.What is the HCF of 16 and 18?
  6. 6.Is 2/3 in its simplest form? (a) Yes (b) No
  7. 7.Write 12/15 in its simplest form. =
  8. 8.Write 4/12 in its simplest form. =
  9. 9.Write 2/18 in its simplest form. =
  10. 10.Write 36/81 in its simplest form. =
  11. 11.Is 6/7 in its simplest form? (a) Yes (b) No
  12. 12.What is the HCF of 12 and 30?
  13. 13.Is 4/40 in its simplest form? (a) Yes (b) No
  14. 14.What is the HCF of 3 and 18?
  15. 15.What is the HCF of 7 and 70?
  16. 16.Write 2/4 in its simplest form. =
  17. 17.What is the HCF of 32 and 56?
  18. 18.Is 1/5 in its simplest form? (a) No (b) Yes
  19. 19.Is 12/32 in its simplest form? (a) No (b) Yes
  20. 20.What is the HCF of 4 and 12?
  21. 21.Write 14/21 in its simplest form. =
  22. 22.Write 24/56 in its simplest form. =
  23. 23.Is 12/21 in its simplest form? (a) Yes (b) No
  24. 24.Is 8/9 in its simplest form? (a) Yes (b) No
  25. 25.Write 6/18 in its simplest form. =
  26. 26.Write 4/20 in its simplest form. =
  27. 27.Write 6/48 in its simplest form. =
  28. 28.What is the HCF of 21 and 28?
  29. 29.What is the HCF of 3 and 6?
  30. 30.What is the HCF of 12 and 40?
  31. 31.What is the HCF of 24 and 64?
  32. 32.What is the HCF of 56 and 64?
  33. 33.Write 32/72 in its simplest form. =
  34. 34.Is 6/8 in its simplest form? (a) Yes (b) No
  35. 35.Write 40/72 in its simplest form. =
  36. 36.Write 14/16 in its simplest form. =
  37. 37.Write 8/72 in its simplest form. =
  38. 38.Write 6/20 in its simplest form. =
  39. 39.Is 28/32 in its simplest form? (a) Yes (b) No
  40. 40.Is 9/12 in its simplest form? (a) Yes (b) No

Answer key

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

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