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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 807 · 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.Write 28/40 in its simplest form. =
  2. 2.Write 48/54 in its simplest form. =
  3. 3.Is 5/7 in its simplest form? (a) No (b) Yes
  4. 4.What is the HCF of 30 and 35?
  5. 5.Is 4/7 in its simplest form? (a) No (b) Yes
  6. 6.Is 7/9 in its simplest form? (a) Yes (b) No
  7. 7.Write 8/20 in its simplest form. =
  8. 8.Is 30/48 in its simplest form? (a) Yes (b) No
  9. 9.Write 6/30 in its simplest form. =
  10. 10.What is the HCF of 8 and 64?
  11. 11.Is 1/3 in its simplest form? (a) Yes (b) No
  12. 12.What is the HCF of 6 and 54?
  13. 13.Write 8/12 in its simplest form. =
  14. 14.Is 5/20 in its simplest form? (a) No (b) Yes
  15. 15.Write 6/27 in its simplest form. =
  16. 16.Is 12/30 in its simplest form? (a) No (b) Yes
  17. 17.Write 36/45 in its simplest form. =
  18. 18.Is 3/10 in its simplest form? (a) Yes (b) No
  19. 19.What is the HCF of 45 and 63?
  20. 20.Write 4/10 in its simplest form. =
  21. 21.Is 1/7 in its simplest form? (a) No (b) Yes
  22. 22.Is 1/10 in its simplest form? (a) No (b) Yes
  23. 23.What is the HCF of 9 and 63?
  24. 24.What is the HCF of 2 and 16?
  25. 25.Is 4/5 in its simplest form? (a) No (b) Yes
  26. 26.What is the HCF of 10 and 14?
  27. 27.Is 10/18 in its simplest form? (a) Yes (b) No
  28. 28.Write 12/16 in its simplest form. =
  29. 29.What is the HCF of 48 and 54?
  30. 30.Write 16/28 in its simplest form. =
  31. 31.Is 5/40 in its simplest form? (a) Yes (b) No
  32. 32.Write 6/21 in its simplest form. =
  33. 33.What is the HCF of 18 and 60?
  34. 34.Is 8/12 in its simplest form? (a) No (b) Yes
  35. 35.What is the HCF of 21 and 24?
  36. 36.Write 27/36 in its simplest form. =
  37. 37.What is the HCF of 15 and 40?
  38. 38.Write 6/10 in its simplest form. =
  39. 39.Is 6/36 in its simplest form? (a) No (b) Yes
  40. 40.What is the HCF of 24 and 54?

Answer key

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

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