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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 804 · 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 1/4 in its simplest form? (a) Yes (b) No
  2. 2.Is 9/30 in its simplest form? (a) No (b) Yes
  3. 3.Is 5/40 in its simplest form? (a) No (b) Yes
  4. 4.What is the HCF of 2 and 4?
  5. 5.Write 12/21 in its simplest form. =
  6. 6.Write 3/12 in its simplest form. =
  7. 7.What is the HCF of 30 and 35?
  8. 8.Write 5/25 in its simplest form. =
  9. 9.What is the HCF of 7 and 28?
  10. 10.Write 6/16 in its simplest form. =
  11. 11.Write 12/14 in its simplest form. =
  12. 12.What is the HCF of 2 and 20?
  13. 13.Is 5/20 in its simplest form? (a) No (b) Yes
  14. 14.Write 12/54 in its simplest form. =
  15. 15.Is 6/16 in its simplest form? (a) No (b) Yes
  16. 16.What is the HCF of 15 and 24?
  17. 17.What is the HCF of 6 and 24?
  18. 18.Write 9/15 in its simplest form. =
  19. 19.Write 10/45 in its simplest form. =
  20. 20.Write 9/21 in its simplest form. =
  21. 21.Write 54/60 in its simplest form. =
  22. 22.Write 3/15 in its simplest form. =
  23. 23.Is 14/20 in its simplest form? (a) Yes (b) No
  24. 24.What is the HCF of 20 and 24?
  25. 25.Write 21/56 in its simplest form. =
  26. 26.Is 3/10 in its simplest form? (a) No (b) Yes
  27. 27.Write 36/42 in its simplest form. =
  28. 28.Is 10/25 in its simplest form? (a) No (b) Yes
  29. 29.Is 4/16 in its simplest form? (a) No (b) Yes
  30. 30.What is the HCF of 35 and 49?
  31. 31.What is the HCF of 48 and 54?
  32. 32.Write 45/54 in its simplest form. =
  33. 33.Write 21/27 in its simplest form. =
  34. 34.Is 4/20 in its simplest form? (a) No (b) Yes
  35. 35.Write 16/24 in its simplest form. =
  36. 36.What is the HCF of 12 and 21?
  37. 37.Write 56/64 in its simplest form. =
  38. 38.Write 18/42 in its simplest form. =
  39. 39.Write 12/27 in its simplest form. =
  40. 40.Write 30/35 in its simplest form. =

Answer key

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

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