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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 667 · 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 2/10 in its simplest form. =
  2. 2.Is 1/4 in its simplest form? (a) No (b) Yes
  3. 3.What is the HCF of 7 and 42?
  4. 4.Write 5/35 in its simplest form. =
  5. 5.What is the HCF of 7 and 14?
  6. 6.Write 18/27 in its simplest form. =
  7. 7.What is the HCF of 15 and 20?
  8. 8.Is 10/16 in its simplest form? (a) No (b) Yes
  9. 9.Is 3/12 in its simplest form? (a) Yes (b) No
  10. 10.Write 16/56 in its simplest form. =
  11. 11.Write 7/14 in its simplest form. =
  12. 12.Write 9/24 in its simplest form. =
  13. 13.Write 3/18 in its simplest form. =
  14. 14.Is 1/7 in its simplest form? (a) No (b) Yes
  15. 15.Is 5/40 in its simplest form? (a) No (b) Yes
  16. 16.Is 3/8 in its simplest form? (a) Yes (b) No
  17. 17.Write 14/49 in its simplest form. =
  18. 18.Write 12/54 in its simplest form. =
  19. 19.Is 2/9 in its simplest form? (a) Yes (b) No
  20. 20.Write 9/36 in its simplest form. =
  21. 21.What is the HCF of 4 and 36?
  22. 22.What is the HCF of 24 and 32?
  23. 23.Write 15/40 in its simplest form. =
  24. 24.Is 4/6 in its simplest form? (a) Yes (b) No
  25. 25.Write 16/24 in its simplest form. =
  26. 26.Write 9/18 in its simplest form. =
  27. 27.Is 8/36 in its simplest form? (a) No (b) Yes
  28. 28.Write 28/40 in its simplest form. =
  29. 29.What is the HCF of 40 and 45?
  30. 30.Is 6/8 in its simplest form? (a) Yes (b) No
  31. 31.What is the HCF of 5 and 45?
  32. 32.Is 12/18 in its simplest form? (a) Yes (b) No
  33. 33.What is the HCF of 5 and 10?
  34. 34.Is 21/24 in its simplest form? (a) No (b) Yes
  35. 35.What is the HCF of 4 and 14?
  36. 36.Is 5/9 in its simplest form? (a) No (b) Yes
  37. 37.Write 6/42 in its simplest form. =
  38. 38.Write 10/25 in its simplest form. =
  39. 39.Is 5/7 in its simplest form? (a) Yes (b) No
  40. 40.What is the HCF of 32 and 36?

Answer key

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

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