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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 683 · 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 16/36 in its simplest form? (a) No (b) Yes
  2. 2.Is 5/6 in its simplest form? (a) No (b) Yes
  3. 3.What is the HCF of 3 and 6?
  4. 4.Write 16/20 in its simplest form. =
  5. 5.What is the HCF of 18 and 60?
  6. 6.Write 3/21 in its simplest form. =
  7. 7.What is the HCF of 27 and 30?
  8. 8.Is 1/10 in its simplest form? (a) Yes (b) No
  9. 9.Is 6/21 in its simplest form? (a) No (b) Yes
  10. 10.Write 56/64 in its simplest form. =
  11. 11.Is 4/20 in its simplest form? (a) Yes (b) No
  12. 12.Is 35/40 in its simplest form? (a) No (b) Yes
  13. 13.What is the HCF of 9 and 21?
  14. 14.Is 3/5 in its simplest form? (a) No (b) Yes
  15. 15.Is 6/7 in its simplest form? (a) No (b) Yes
  16. 16.Write 16/28 in its simplest form. =
  17. 17.Write 24/27 in its simplest form. =
  18. 18.What is the HCF of 8 and 12?
  19. 19.Is 9/24 in its simplest form? (a) No (b) Yes
  20. 20.Write 12/54 in its simplest form. =
  21. 21.Write 24/54 in its simplest form. =
  22. 22.Write 36/63 in its simplest form. =
  23. 23.What is the HCF of 18 and 45?
  24. 24.What is the HCF of 54 and 63?
  25. 25.What is the HCF of 24 and 54?
  26. 26.Write 18/45 in its simplest form. =
  27. 27.What is the HCF of 15 and 25?
  28. 28.Write 6/60 in its simplest form. =
  29. 29.Write 28/35 in its simplest form. =
  30. 30.Is 6/42 in its simplest form? (a) Yes (b) No
  31. 31.Write 10/18 in its simplest form. =
  32. 32.Is 5/9 in its simplest form? (a) No (b) Yes
  33. 33.What is the HCF of 15 and 24?
  34. 34.What is the HCF of 49 and 56?
  35. 35.What is the HCF of 10 and 12?
  36. 36.Is 1/2 in its simplest form? (a) No (b) Yes
  37. 37.What is the HCF of 4 and 18?
  38. 38.Is 12/14 in its simplest form? (a) No (b) Yes
  39. 39.Write 8/64 in its simplest form. =
  40. 40.Is 3/24 in its simplest form? (a) Yes (b) No

Answer key

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

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