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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 340 · 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 4/8 in its simplest form? (a) Yes (b) No
  2. 2.What is the HCF of 2 and 20?
  3. 3.Write 12/21 in its simplest form. =
  4. 4.Is 4/16 in its simplest form? (a) Yes (b) No
  5. 5.Write 6/60 in its simplest form. =
  6. 6.Is 2/20 in its simplest form? (a) No (b) Yes
  7. 7.What is the HCF of 15 and 25?
  8. 8.What is the HCF of 8 and 12?
  9. 9.What is the HCF of 6 and 54?
  10. 10.What is the HCF of 45 and 63?
  11. 11.Is 1/3 in its simplest form? (a) No (b) Yes
  12. 12.Is 16/36 in its simplest form? (a) No (b) Yes
  13. 13.What is the HCF of 12 and 20?
  14. 14.Write 6/8 in its simplest form. =
  15. 15.Is 10/15 in its simplest form? (a) Yes (b) No
  16. 16.Is 18/20 in its simplest form? (a) No (b) Yes
  17. 17.What is the HCF of 9 and 18?
  18. 18.Write 3/15 in its simplest form. =
  19. 19.Is 30/48 in its simplest form? (a) No (b) Yes
  20. 20.Is 5/9 in its simplest form? (a) No (b) Yes
  21. 21.What is the HCF of 32 and 72?
  22. 22.Write 2/18 in its simplest form. =
  23. 23.Write 32/56 in its simplest form. =
  24. 24.Write 6/12 in its simplest form. =
  25. 25.What is the HCF of 81 and 90?
  26. 26.Is 3/6 in its simplest form? (a) Yes (b) No
  27. 27.Is 3/4 in its simplest form? (a) No (b) Yes
  28. 28.Is 3/15 in its simplest form? (a) Yes (b) No
  29. 29.Is 6/48 in its simplest form? (a) Yes (b) No
  30. 30.Is 21/27 in its simplest form? (a) Yes (b) No
  31. 31.Write 3/27 in its simplest form. =
  32. 32.Is 7/10 in its simplest form? (a) No (b) Yes
  33. 33.What is the HCF of 8 and 32?
  34. 34.Write 14/18 in its simplest form. =
  35. 35.Is 4/36 in its simplest form? (a) No (b) Yes
  36. 36.What is the HCF of 6 and 14?
  37. 37.Write 7/21 in its simplest form. =
  38. 38.What is the HCF of 8 and 20?
  39. 39.Write 16/28 in its simplest form. =
  40. 40.Is 4/9 in its simplest form? (a) No (b) Yes

Answer key

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

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