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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 719 · 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 10/25 in its simplest form? (a) Yes (b) No
  2. 2.What is the HCF of 6 and 20?
  3. 3.What is the HCF of 9 and 45?
  4. 4.Is 2/5 in its simplest form? (a) Yes (b) No
  5. 5.Write 4/32 in its simplest form. =
  6. 6.Is 6/8 in its simplest form? (a) Yes (b) No
  7. 7.Is 24/27 in its simplest form? (a) No (b) Yes
  8. 8.What is the HCF of 27 and 36?
  9. 9.Write 40/48 in its simplest form. =
  10. 10.Write 3/12 in its simplest form. =
  11. 11.What is the HCF of 63 and 90?
  12. 12.What is the HCF of 63 and 81?
  13. 13.Write 35/40 in its simplest form. =
  14. 14.Is 3/15 in its simplest form? (a) No (b) Yes
  15. 15.Is 3/4 in its simplest form? (a) No (b) Yes
  16. 16.Write 8/24 in its simplest form. =
  17. 17.What is the HCF of 3 and 12?
  18. 18.Is 2/6 in its simplest form? (a) Yes (b) No
  19. 19.What is the HCF of 18 and 24?
  20. 20.Is 7/8 in its simplest form? (a) No (b) Yes
  21. 21.What is the HCF of 16 and 28?
  22. 22.Write 7/35 in its simplest form. =
  23. 23.Write 18/45 in its simplest form. =
  24. 24.Is 1/3 in its simplest form? (a) No (b) Yes
  25. 25.What is the HCF of 18 and 60?
  26. 26.Write 18/48 in its simplest form. =
  27. 27.Write 4/14 in its simplest form. =
  28. 28.Write 2/6 in its simplest form. =
  29. 29.Is 18/42 in its simplest form? (a) No (b) Yes
  30. 30.Write 16/36 in its simplest form. =
  31. 31.Write 36/42 in its simplest form. =
  32. 32.What is the HCF of 8 and 12?
  33. 33.What is the HCF of 8 and 32?
  34. 34.Is 30/36 in its simplest form? (a) Yes (b) No
  35. 35.What is the HCF of 5 and 40?
  36. 36.Write 7/42 in its simplest form. =
  37. 37.Write 28/63 in its simplest form. =
  38. 38.Is 16/36 in its simplest form? (a) Yes (b) No
  39. 39.Is 24/30 in its simplest form? (a) No (b) Yes
  40. 40.Is 20/36 in its simplest form? (a) Yes (b) No

Answer key

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

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