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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 934 · 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 4/40 in its simplest form. =
  2. 2.Is 1/3 in its simplest form? (a) Yes (b) No
  3. 3.What is the HCF of 3 and 27?
  4. 4.What is the HCF of 21 and 27?
  5. 5.Write 24/56 in its simplest form. =
  6. 6.What is the HCF of 21 and 24?
  7. 7.Write 40/48 in its simplest form. =
  8. 8.Is 2/9 in its simplest form? (a) Yes (b) No
  9. 9.What is the HCF of 16 and 28?
  10. 10.Is 2/6 in its simplest form? (a) No (b) Yes
  11. 11.What is the HCF of 8 and 40?
  12. 12.Is 9/12 in its simplest form? (a) No (b) Yes
  13. 13.Write 7/63 in its simplest form. =
  14. 14.What is the HCF of 20 and 28?
  15. 15.Write 6/27 in its simplest form. =
  16. 16.Write 2/18 in its simplest form. =
  17. 17.What is the HCF of 5 and 45?
  18. 18.Write 7/28 in its simplest form. =
  19. 19.What is the HCF of 35 and 63?
  20. 20.Write 45/63 in its simplest form. =
  21. 21.Is 3/7 in its simplest form? (a) No (b) Yes
  22. 22.Write 63/72 in its simplest form. =
  23. 23.Is 4/5 in its simplest form? (a) Yes (b) No
  24. 24.Write 3/21 in its simplest form. =
  25. 25.Is 2/7 in its simplest form? (a) Yes (b) No
  26. 26.Is 2/16 in its simplest form? (a) Yes (b) No
  27. 27.Is 15/25 in its simplest form? (a) Yes (b) No
  28. 28.Write 7/42 in its simplest form. =
  29. 29.Is 5/7 in its simplest form? (a) No (b) Yes
  30. 30.What is the HCF of 36 and 45?
  31. 31.What is the HCF of 16 and 18?
  32. 32.Write 45/50 in its simplest form. =
  33. 33.What is the HCF of 32 and 36?
  34. 34.What is the HCF of 45 and 81?
  35. 35.Is 6/21 in its simplest form? (a) No (b) Yes
  36. 36.What is the HCF of 12 and 15?
  37. 37.Write 8/32 in its simplest form. =
  38. 38.Is 12/40 in its simplest form? (a) Yes (b) No
  39. 39.Is 8/9 in its simplest form? (a) No (b) Yes
  40. 40.Write 6/8 in its simplest form. =

Answer key

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

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