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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 727 · 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 30 and 42?
  2. 2.Write 8/40 in its simplest form. =
  3. 3.Write 4/8 in its simplest form. =
  4. 4.Write 15/24 in its simplest form. =
  5. 5.Is 20/25 in its simplest form? (a) No (b) Yes
  6. 6.Write 42/48 in its simplest form. =
  7. 7.Write 2/18 in its simplest form. =
  8. 8.Write 3/6 in its simplest form. =
  9. 9.Write 24/42 in its simplest form. =
  10. 10.Is 8/12 in its simplest form? (a) No (b) Yes
  11. 11.Write 6/15 in its simplest form. =
  12. 12.Is 15/25 in its simplest form? (a) No (b) Yes
  13. 13.Write 10/14 in its simplest form. =
  14. 14.What is the HCF of 8 and 18?
  15. 15.Write 16/28 in its simplest form. =
  16. 16.Is 5/20 in its simplest form? (a) No (b) Yes
  17. 17.What is the HCF of 12 and 42?
  18. 18.Is 7/10 in its simplest form? (a) Yes (b) No
  19. 19.Is 4/40 in its simplest form? (a) No (b) Yes
  20. 20.What is the HCF of 36 and 42?
  21. 21.Write 7/49 in its simplest form. =
  22. 22.Write 16/20 in its simplest form. =
  23. 23.Is 5/8 in its simplest form? (a) No (b) Yes
  24. 24.Is 1/6 in its simplest form? (a) No (b) Yes
  25. 25.Is 8/20 in its simplest form? (a) No (b) Yes
  26. 26.Write 28/32 in its simplest form. =
  27. 27.Is 3/10 in its simplest form? (a) No (b) Yes
  28. 28.Is 1/4 in its simplest form? (a) No (b) Yes
  29. 29.Is 24/28 in its simplest form? (a) Yes (b) No
  30. 30.Write 20/25 in its simplest form. =
  31. 31.Write 30/35 in its simplest form. =
  32. 32.Is 2/9 in its simplest form? (a) Yes (b) No
  33. 33.What is the HCF of 8 and 40?
  34. 34.What is the HCF of 9 and 12?
  35. 35.Write 6/48 in its simplest form. =
  36. 36.What is the HCF of 6 and 16?
  37. 37.Write 18/20 in its simplest form. =
  38. 38.Write 18/30 in its simplest form. =
  39. 39.What is the HCF of 21 and 28?
  40. 40.Write 4/40 in its simplest form. =

Answer key

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

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