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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 185 · 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 3/8 in its simplest form? (a) No (b) Yes
  2. 2.Is 4/10 in its simplest form? (a) No (b) Yes
  3. 3.Is 1/4 in its simplest form? (a) Yes (b) No
  4. 4.Write 18/24 in its simplest form. =
  5. 5.Write 5/50 in its simplest form. =
  6. 6.Write 4/18 in its simplest form. =
  7. 7.Is 1/6 in its simplest form? (a) No (b) Yes
  8. 8.What is the HCF of 45 and 50?
  9. 9.Write 15/20 in its simplest form. =
  10. 10.Is 3/21 in its simplest form? (a) Yes (b) No
  11. 11.Write 4/16 in its simplest form. =
  12. 12.Write 28/40 in its simplest form. =
  13. 13.Is 36/40 in its simplest form? (a) Yes (b) No
  14. 14.Write 12/28 in its simplest form. =
  15. 15.What is the HCF of 21 and 56?
  16. 16.What is the HCF of 3 and 6?
  17. 17.Is 3/4 in its simplest form? (a) Yes (b) No
  18. 18.Write 9/30 in its simplest form. =
  19. 19.Is 35/40 in its simplest form? (a) No (b) Yes
  20. 20.Write 12/21 in its simplest form. =
  21. 21.Write 7/56 in its simplest form. =
  22. 22.Is 5/8 in its simplest form? (a) Yes (b) No
  23. 23.What is the HCF of 20 and 36?
  24. 24.What is the HCF of 21 and 70?
  25. 25.Is 6/12 in its simplest form? (a) Yes (b) No
  26. 26.Is 14/18 in its simplest form? (a) No (b) Yes
  27. 27.What is the HCF of 36 and 63?
  28. 28.Write 12/30 in its simplest form. =
  29. 29.Is 16/28 in its simplest form? (a) Yes (b) No
  30. 30.Is 12/28 in its simplest form? (a) No (b) Yes
  31. 31.What is the HCF of 6 and 30?
  32. 32.What is the HCF of 6 and 12?
  33. 33.Write 9/27 in its simplest form. =
  34. 34.Is 42/48 in its simplest form? (a) No (b) Yes
  35. 35.What is the HCF of 9 and 36?
  36. 36.Write 8/14 in its simplest form. =
  37. 37.Is 1/8 in its simplest form? (a) No (b) Yes
  38. 38.Write 14/20 in its simplest form. =
  39. 39.Is 3/10 in its simplest form? (a) No (b) Yes
  40. 40.Is 21/30 in its simplest form? (a) Yes (b) No

Answer key

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

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