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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 961 · 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 5/9 in its simplest form? (a) No (b) Yes
  2. 2.What is the HCF of 16 and 20?
  3. 3.Is 6/21 in its simplest form? (a) No (b) Yes
  4. 4.What is the HCF of 14 and 18?
  5. 5.Is 7/8 in its simplest form? (a) Yes (b) No
  6. 6.Is 2/7 in its simplest form? (a) No (b) Yes
  7. 7.Is 2/8 in its simplest form? (a) No (b) Yes
  8. 8.Write 18/27 in its simplest form. =
  9. 9.Is 2/4 in its simplest form? (a) No (b) Yes
  10. 10.Write 6/12 in its simplest form. =
  11. 11.Is 3/7 in its simplest form? (a) No (b) Yes
  12. 12.Write 9/24 in its simplest form. =
  13. 13.What is the HCF of 6 and 21?
  14. 14.Write 36/45 in its simplest form. =
  15. 15.What is the HCF of 3 and 9?
  16. 16.Is 3/9 in its simplest form? (a) Yes (b) No
  17. 17.What is the HCF of 9 and 36?
  18. 18.Write 18/30 in its simplest form. =
  19. 19.Write 2/10 in its simplest form. =
  20. 20.Write 24/42 in its simplest form. =
  21. 21.Is 5/25 in its simplest form? (a) No (b) Yes
  22. 22.Is 3/10 in its simplest form? (a) Yes (b) No
  23. 23.Write 8/40 in its simplest form. =
  24. 24.Is 6/60 in its simplest form? (a) No (b) Yes
  25. 25.Write 6/60 in its simplest form. =
  26. 26.Write 32/36 in its simplest form. =
  27. 27.Is 12/16 in its simplest form? (a) Yes (b) No
  28. 28.Write 6/24 in its simplest form. =
  29. 29.Write 8/10 in its simplest form. =
  30. 30.What is the HCF of 6 and 42?
  31. 31.Write 35/50 in its simplest form. =
  32. 32.Is 1/6 in its simplest form? (a) Yes (b) No
  33. 33.Write 40/48 in its simplest form. =
  34. 34.What is the HCF of 7 and 49?
  35. 35.What is the HCF of 8 and 32?
  36. 36.What is the HCF of 40 and 45?
  37. 37.What is the HCF of 15 and 25?
  38. 38.Is 18/60 in its simplest form? (a) No (b) Yes
  39. 39.Write 24/28 in its simplest form. =
  40. 40.Is 14/18 in its simplest form? (a) No (b) Yes

Answer key

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

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