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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 541 · 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 7/21 in its simplest form. =
  2. 2.Is 1/6 in its simplest form? (a) Yes (b) No
  3. 3.Is 7/9 in its simplest form? (a) Yes (b) No
  4. 4.Is 4/6 in its simplest form? (a) Yes (b) No
  5. 5.Write 15/18 in its simplest form. =
  6. 6.What is the HCF of 6 and 15?
  7. 7.Is 5/7 in its simplest form? (a) Yes (b) No
  8. 8.What is the HCF of 2 and 8?
  9. 9.Write 5/20 in its simplest form. =
  10. 10.Is 6/27 in its simplest form? (a) No (b) Yes
  11. 11.Is 21/27 in its simplest form? (a) No (b) Yes
  12. 12.Is 4/7 in its simplest form? (a) Yes (b) No
  13. 13.Write 8/12 in its simplest form. =
  14. 14.What is the HCF of 2 and 10?
  15. 15.Is 16/28 in its simplest form? (a) Yes (b) No
  16. 16.Is 6/7 in its simplest form? (a) No (b) Yes
  17. 17.Write 72/81 in its simplest form. =
  18. 18.Write 3/24 in its simplest form. =
  19. 19.What is the HCF of 56 and 64?
  20. 20.Write 2/4 in its simplest form. =
  21. 21.Write 10/14 in its simplest form. =
  22. 22.Is 2/10 in its simplest form? (a) No (b) Yes
  23. 23.Is 1/10 in its simplest form? (a) Yes (b) No
  24. 24.What is the HCF of 15 and 21?
  25. 25.Write 18/30 in its simplest form. =
  26. 26.Is 40/45 in its simplest form? (a) Yes (b) No
  27. 27.Write 14/21 in its simplest form. =
  28. 28.Is 21/30 in its simplest form? (a) Yes (b) No
  29. 29.What is the HCF of 24 and 40?
  30. 30.Write 4/18 in its simplest form. =
  31. 31.Write 6/10 in its simplest form. =
  32. 32.What is the HCF of 72 and 81?
  33. 33.What is the HCF of 32 and 40?
  34. 34.Write 4/10 in its simplest form. =
  35. 35.Write 7/28 in its simplest form. =
  36. 36.What is the HCF of 6 and 20?
  37. 37.Is 8/12 in its simplest form? (a) No (b) Yes
  38. 38.Is 6/16 in its simplest form? (a) No (b) Yes
  39. 39.What is the HCF of 8 and 80?
  40. 40.Write 9/36 in its simplest form. =

Answer key

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

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