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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 515 · 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 12/18 in its simplest form? (a) No (b) Yes
  2. 2.What is the HCF of 8 and 56?
  3. 3.Write 2/12 in its simplest form. =
  4. 4.Write 27/90 in its simplest form. =
  5. 5.What is the HCF of 30 and 36?
  6. 6.Write 6/42 in its simplest form. =
  7. 7.Write 14/63 in its simplest form. =
  8. 8.Is 2/9 in its simplest form? (a) No (b) Yes
  9. 9.Write 10/16 in its simplest form. =
  10. 10.Is 12/15 in its simplest form? (a) No (b) Yes
  11. 11.Is 2/3 in its simplest form? (a) Yes (b) No
  12. 12.What is the HCF of 7 and 28?
  13. 13.Write 49/56 in its simplest form. =
  14. 14.Write 6/30 in its simplest form. =
  15. 15.Is 1/9 in its simplest form? (a) Yes (b) No
  16. 16.Is 3/4 in its simplest form? (a) Yes (b) No
  17. 17.What is the HCF of 28 and 49?
  18. 18.Is 9/12 in its simplest form? (a) Yes (b) No
  19. 19.Write 16/18 in its simplest form. =
  20. 20.What is the HCF of 16 and 28?
  21. 21.What is the HCF of 24 and 56?
  22. 22.Write 6/54 in its simplest form. =
  23. 23.Is 21/27 in its simplest form? (a) No (b) Yes
  24. 24.Is 8/9 in its simplest form? (a) No (b) Yes
  25. 25.What is the HCF of 25 and 45?
  26. 26.Is 35/45 in its simplest form? (a) Yes (b) No
  27. 27.What is the HCF of 56 and 63?
  28. 28.Is 16/20 in its simplest form? (a) Yes (b) No
  29. 29.Write 18/48 in its simplest form. =
  30. 30.Is 8/12 in its simplest form? (a) Yes (b) No
  31. 31.Write 3/30 in its simplest form. =
  32. 32.Is 1/4 in its simplest form? (a) No (b) Yes
  33. 33.What is the HCF of 32 and 56?
  34. 34.Is 9/10 in its simplest form? (a) No (b) Yes
  35. 35.What is the HCF of 18 and 20?
  36. 36.What is the HCF of 8 and 72?
  37. 37.Is 24/30 in its simplest form? (a) No (b) Yes
  38. 38.What is the HCF of 49 and 56?
  39. 39.Write 6/20 in its simplest form. =
  40. 40.Write 45/54 in its simplest form. =

Answer key

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

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