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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 104 · 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 1/9 in its simplest form? (a) No (b) Yes
  2. 2.Is 7/9 in its simplest form? (a) No (b) Yes
  3. 3.Write 16/56 in its simplest form. =
  4. 4.Is 6/42 in its simplest form? (a) Yes (b) No
  5. 5.Is 5/15 in its simplest form? (a) No (b) Yes
  6. 6.Is 12/21 in its simplest form? (a) No (b) Yes
  7. 7.Write 4/12 in its simplest form. =
  8. 8.What is the HCF of 35 and 42?
  9. 9.What is the HCF of 8 and 56?
  10. 10.Write 6/16 in its simplest form. =
  11. 11.What is the HCF of 12 and 18?
  12. 12.Is 5/35 in its simplest form? (a) No (b) Yes
  13. 13.What is the HCF of 21 and 70?
  14. 14.Write 25/30 in its simplest form. =
  15. 15.Write 54/60 in its simplest form. =
  16. 16.Is 3/7 in its simplest form? (a) No (b) Yes
  17. 17.Write 2/12 in its simplest form. =
  18. 18.What is the HCF of 28 and 35?
  19. 19.What is the HCF of 40 and 48?
  20. 20.Write 4/16 in its simplest form. =
  21. 21.Is 3/4 in its simplest form? (a) Yes (b) No
  22. 22.Is 4/36 in its simplest form? (a) No (b) Yes
  23. 23.Write 32/40 in its simplest form. =
  24. 24.Is 18/60 in its simplest form? (a) Yes (b) No
  25. 25.Write 3/24 in its simplest form. =
  26. 26.Write 8/32 in its simplest form. =
  27. 27.What is the HCF of 6 and 16?
  28. 28.Write 15/27 in its simplest form. =
  29. 29.Write 49/70 in its simplest form. =
  30. 30.Write 42/48 in its simplest form. =
  31. 31.Is 18/20 in its simplest form? (a) No (b) Yes
  32. 32.What is the HCF of 21 and 30?
  33. 33.Write 6/9 in its simplest form. =
  34. 34.What is the HCF of 2 and 12?
  35. 35.Is 6/8 in its simplest form? (a) Yes (b) No
  36. 36.Write 2/18 in its simplest form. =
  37. 37.Is 6/36 in its simplest form? (a) No (b) Yes
  38. 38.Is 5/25 in its simplest form? (a) Yes (b) No
  39. 39.Is 9/10 in its simplest form? (a) No (b) Yes
  40. 40.What is the HCF of 8 and 14?

Answer key

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

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