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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 599 · 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 48?
  2. 2.Is 1/3 in its simplest form? (a) Yes (b) No
  3. 3.Write 18/30 in its simplest form. =
  4. 4.Is 20/25 in its simplest form? (a) No (b) Yes
  5. 5.Is 7/8 in its simplest form? (a) Yes (b) No
  6. 6.Is 6/18 in its simplest form? (a) Yes (b) No
  7. 7.Is 1/5 in its simplest form? (a) Yes (b) No
  8. 8.What is the HCF of 24 and 56?
  9. 9.What is the HCF of 49 and 70?
  10. 10.Is 5/35 in its simplest form? (a) No (b) Yes
  11. 11.Write 12/18 in its simplest form. =
  12. 12.Is 4/5 in its simplest form? (a) No (b) Yes
  13. 13.What is the HCF of 3 and 27?
  14. 14.What is the HCF of 7 and 14?
  15. 15.Is 1/6 in its simplest form? (a) No (b) Yes
  16. 16.Is 9/10 in its simplest form? (a) Yes (b) No
  17. 17.What is the HCF of 3 and 9?
  18. 18.What is the HCF of 24 and 28?
  19. 19.What is the HCF of 24 and 64?
  20. 20.Write 64/72 in its simplest form. =
  21. 21.Is 15/27 in its simplest form? (a) Yes (b) No
  22. 22.Is 5/8 in its simplest form? (a) No (b) Yes
  23. 23.What is the HCF of 12 and 54?
  24. 24.Is 3/10 in its simplest form? (a) No (b) Yes
  25. 25.Is 4/6 in its simplest form? (a) Yes (b) No
  26. 26.Write 30/54 in its simplest form. =
  27. 27.Write 6/42 in its simplest form. =
  28. 28.What is the HCF of 10 and 15?
  29. 29.Write 6/60 in its simplest form. =
  30. 30.What is the HCF of 12 and 30?
  31. 31.Is 9/12 in its simplest form? (a) Yes (b) No
  32. 32.What is the HCF of 18 and 42?
  33. 33.Is 1/7 in its simplest form? (a) No (b) Yes
  34. 34.Is 1/10 in its simplest form? (a) No (b) Yes
  35. 35.Write 2/20 in its simplest form. =
  36. 36.Write 7/49 in its simplest form. =
  37. 37.Write 10/45 in its simplest form. =
  38. 38.Is 3/24 in its simplest form? (a) No (b) Yes
  39. 39.Write 14/35 in its simplest form. =
  40. 40.Write 35/63 in its simplest form. =

Answer key

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

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