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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 240 · 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.What is the HCF of 6 and 30?
  2. 2.Is 3/6 in its simplest form? (a) No (b) Yes
  3. 3.Write 8/32 in its simplest form. =
  4. 4.Is 3/5 in its simplest form? (a) No (b) Yes
  5. 5.Write 28/63 in its simplest form. =
  6. 6.Write 4/10 in its simplest form. =
  7. 7.Is 12/15 in its simplest form? (a) No (b) Yes
  8. 8.Is 1/8 in its simplest form? (a) No (b) Yes
  9. 9.Write 25/40 in its simplest form. =
  10. 10.Is 1/4 in its simplest form? (a) Yes (b) No
  11. 11.Write 7/42 in its simplest form. =
  12. 12.Is 1/10 in its simplest form? (a) No (b) Yes
  13. 13.Is 3/4 in its simplest form? (a) Yes (b) No
  14. 14.Write 9/81 in its simplest form. =
  15. 15.Is 2/14 in its simplest form? (a) No (b) Yes
  16. 16.Write 18/20 in its simplest form. =
  17. 17.Is 30/35 in its simplest form? (a) No (b) Yes
  18. 18.What is the HCF of 10 and 14?
  19. 19.Write 32/56 in its simplest form. =
  20. 20.Write 8/18 in its simplest form. =
  21. 21.Is 6/18 in its simplest form? (a) Yes (b) No
  22. 22.Write 28/35 in its simplest form. =
  23. 23.What is the HCF of 5 and 30?
  24. 24.Is 5/45 in its simplest form? (a) No (b) Yes
  25. 25.Is 12/20 in its simplest form? (a) No (b) Yes
  26. 26.What is the HCF of 12 and 14?
  27. 27.Write 63/81 in its simplest form. =
  28. 28.Is 2/18 in its simplest form? (a) Yes (b) No
  29. 29.Write 10/18 in its simplest form. =
  30. 30.Write 20/45 in its simplest form. =
  31. 31.Write 5/35 in its simplest form. =
  32. 32.What is the HCF of 12 and 54?
  33. 33.What is the HCF of 40 and 64?
  34. 34.Write 8/16 in its simplest form. =
  35. 35.Write 10/15 in its simplest form. =
  36. 36.What is the HCF of 36 and 42?
  37. 37.Is 1/5 in its simplest form? (a) No (b) Yes
  38. 38.Is 1/3 in its simplest form? (a) No (b) Yes
  39. 39.What is the HCF of 27 and 63?
  40. 40.Write 8/12 in its simplest form. =

Answer key

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

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