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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 116 · 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 5/7 in its simplest form? (a) No (b) Yes
  2. 2.Is 3/15 in its simplest form? (a) Yes (b) No
  3. 3.Write 9/21 in its simplest form. =
  4. 4.Write 9/15 in its simplest form. =
  5. 5.Is 7/9 in its simplest form? (a) No (b) Yes
  6. 6.Is 1/6 in its simplest form? (a) No (b) Yes
  7. 7.Write 21/30 in its simplest form. =
  8. 8.Write 15/40 in its simplest form. =
  9. 9.Write 2/14 in its simplest form. =
  10. 10.What is the HCF of 36 and 42?
  11. 11.What is the HCF of 6 and 12?
  12. 12.Write 10/16 in its simplest form. =
  13. 13.Write 20/36 in its simplest form. =
  14. 14.Is 5/8 in its simplest form? (a) No (b) Yes
  15. 15.Write 14/20 in its simplest form. =
  16. 16.Is 4/10 in its simplest form? (a) No (b) Yes
  17. 17.Is 2/3 in its simplest form? (a) No (b) Yes
  18. 18.Is 8/20 in its simplest form? (a) Yes (b) No
  19. 19.What is the HCF of 10 and 18?
  20. 20.Write 3/21 in its simplest form. =
  21. 21.Write 8/18 in its simplest form. =
  22. 22.Is 12/15 in its simplest form? (a) Yes (b) No
  23. 23.Write 21/24 in its simplest form. =
  24. 24.What is the HCF of 9 and 24?
  25. 25.What is the HCF of 2 and 20?
  26. 26.Write 2/18 in its simplest form. =
  27. 27.What is the HCF of 8 and 24?
  28. 28.Is 1/5 in its simplest form? (a) No (b) Yes
  29. 29.Write 10/35 in its simplest form. =
  30. 30.Is 10/12 in its simplest form? (a) No (b) Yes
  31. 31.Is 1/2 in its simplest form? (a) Yes (b) No
  32. 32.Is 5/6 in its simplest form? (a) Yes (b) No
  33. 33.Is 9/24 in its simplest form? (a) No (b) Yes
  34. 34.Write 56/64 in its simplest form. =
  35. 35.Is 7/8 in its simplest form? (a) No (b) Yes
  36. 36.Is 6/48 in its simplest form? (a) Yes (b) No
  37. 37.What is the HCF of 32 and 40?
  38. 38.Is 35/40 in its simplest form? (a) No (b) Yes
  39. 39.Is 15/50 in its simplest form? (a) No (b) Yes
  40. 40.Is 12/32 in its simplest form? (a) No (b) Yes

Answer key

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

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