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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 132 · 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 5 and 45?
  2. 2.Is 5/7 in its simplest form? (a) No (b) Yes
  3. 3.Is 5/45 in its simplest form? (a) No (b) Yes
  4. 4.What is the HCF of 6 and 30?
  5. 5.Write 6/48 in its simplest form. =
  6. 6.Is 18/24 in its simplest form? (a) No (b) Yes
  7. 7.Write 9/12 in its simplest form. =
  8. 8.Is 5/8 in its simplest form? (a) No (b) Yes
  9. 9.What is the HCF of 16 and 40?
  10. 10.Write 12/21 in its simplest form. =
  11. 11.Write 15/35 in its simplest form. =
  12. 12.Is 6/12 in its simplest form? (a) Yes (b) No
  13. 13.What is the HCF of 8 and 14?
  14. 14.Write 2/18 in its simplest form. =
  15. 15.What is the HCF of 3 and 24?
  16. 16.Write 9/24 in its simplest form. =
  17. 17.Write 12/27 in its simplest form. =
  18. 18.Write 25/40 in its simplest form. =
  19. 19.What is the HCF of 16 and 18?
  20. 20.Is 12/20 in its simplest form? (a) Yes (b) No
  21. 21.What is the HCF of 12 and 18?
  22. 22.Is 2/9 in its simplest form? (a) No (b) Yes
  23. 23.Write 4/14 in its simplest form. =
  24. 24.Is 7/9 in its simplest form? (a) Yes (b) No
  25. 25.Write 15/24 in its simplest form. =
  26. 26.Write 12/42 in its simplest form. =
  27. 27.Write 14/35 in its simplest form. =
  28. 28.What is the HCF of 12 and 54?
  29. 29.What is the HCF of 63 and 70?
  30. 30.Is 18/42 in its simplest form? (a) Yes (b) No
  31. 31.What is the HCF of 16 and 24?
  32. 32.Write 36/42 in its simplest form. =
  33. 33.Write 27/63 in its simplest form. =
  34. 34.What is the HCF of 40 and 64?
  35. 35.Is 4/40 in its simplest form? (a) No (b) Yes
  36. 36.What is the HCF of 2 and 20?
  37. 37.Is 1/3 in its simplest form? (a) Yes (b) No
  38. 38.Write 14/16 in its simplest form. =
  39. 39.Write 3/12 in its simplest form. =
  40. 40.Write 35/63 in its simplest form. =

Answer key

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

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