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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 547 · 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 3/8 in its simplest form? (a) Yes (b) No
  2. 2.Write 9/24 in its simplest form. =
  3. 3.What is the HCF of 12 and 27?
  4. 4.Write 4/18 in its simplest form. =
  5. 5.Write 9/15 in its simplest form. =
  6. 6.Write 15/18 in its simplest form. =
  7. 7.Is 4/14 in its simplest form? (a) No (b) Yes
  8. 8.Write 12/16 in its simplest form. =
  9. 9.Is 3/4 in its simplest form? (a) Yes (b) No
  10. 10.What is the HCF of 12 and 20?
  11. 11.What is the HCF of 4 and 40?
  12. 12.What is the HCF of 4 and 10?
  13. 13.Write 49/70 in its simplest form. =
  14. 14.Write 2/12 in its simplest form. =
  15. 15.What is the HCF of 9 and 81?
  16. 16.Is 12/54 in its simplest form? (a) Yes (b) No
  17. 17.Write 7/42 in its simplest form. =
  18. 18.Is 5/7 in its simplest form? (a) Yes (b) No
  19. 19.What is the HCF of 3 and 21?
  20. 20.What is the HCF of 12 and 14?
  21. 21.Is 24/54 in its simplest form? (a) No (b) Yes
  22. 22.Is 1/10 in its simplest form? (a) No (b) Yes
  23. 23.Write 21/27 in its simplest form. =
  24. 24.Write 45/63 in its simplest form. =
  25. 25.Is 9/15 in its simplest form? (a) Yes (b) No
  26. 26.Write 42/54 in its simplest form. =
  27. 27.Is 4/36 in its simplest form? (a) Yes (b) No
  28. 28.Is 8/9 in its simplest form? (a) No (b) Yes
  29. 29.Is 1/4 in its simplest form? (a) Yes (b) No
  30. 30.Is 4/40 in its simplest form? (a) No (b) Yes
  31. 31.Is 8/18 in its simplest form? (a) No (b) Yes
  32. 32.Write 12/15 in its simplest form. =
  33. 33.Write 6/8 in its simplest form. =
  34. 34.Is 18/42 in its simplest form? (a) Yes (b) No
  35. 35.What is the HCF of 18 and 30?
  36. 36.Write 3/9 in its simplest form. =
  37. 37.What is the HCF of 16 and 20?
  38. 38.What is the HCF of 28 and 36?
  39. 39.Write 8/12 in its simplest form. =
  40. 40.What is the HCF of 12 and 16?

Answer key

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

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