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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 618 · 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.Is 36/42 in its simplest form? (a) Yes (b) No
  2. 2.Write 21/56 in its simplest form. =
  3. 3.What is the HCF of 42 and 48?
  4. 4.Write 9/45 in its simplest form. =
  5. 5.What is the HCF of 9 and 36?
  6. 6.Write 3/30 in its simplest form. =
  7. 7.Write 15/50 in its simplest form. =
  8. 8.Write 18/27 in its simplest form. =
  9. 9.Write 10/25 in its simplest form. =
  10. 10.What is the HCF of 8 and 18?
  11. 11.What is the HCF of 6 and 14?
  12. 12.Write 20/28 in its simplest form. =
  13. 13.Write 5/25 in its simplest form. =
  14. 14.What is the HCF of 24 and 40?
  15. 15.Write 6/12 in its simplest form. =
  16. 16.Write 36/40 in its simplest form. =
  17. 17.Write 32/72 in its simplest form. =
  18. 18.What is the HCF of 18 and 48?
  19. 19.Write 24/30 in its simplest form. =
  20. 20.Write 8/72 in its simplest form. =
  21. 21.What is the HCF of 49 and 56?
  22. 22.Is 3/10 in its simplest form? (a) No (b) Yes
  23. 23.Is 3/12 in its simplest form? (a) No (b) Yes
  24. 24.Is 5/9 in its simplest form? (a) Yes (b) No
  25. 25.What is the HCF of 4 and 24?
  26. 26.Is 28/32 in its simplest form? (a) Yes (b) No
  27. 27.What is the HCF of 20 and 35?
  28. 28.Write 4/16 in its simplest form. =
  29. 29.Is 18/21 in its simplest form? (a) No (b) Yes
  30. 30.Write 5/45 in its simplest form. =
  31. 31.Is 5/6 in its simplest form? (a) Yes (b) No
  32. 32.Is 15/25 in its simplest form? (a) Yes (b) No
  33. 33.Is 12/30 in its simplest form? (a) Yes (b) No
  34. 34.Write 2/20 in its simplest form. =
  35. 35.Write 40/48 in its simplest form. =
  36. 36.Is 3/5 in its simplest form? (a) Yes (b) No
  37. 37.Write 18/30 in its simplest form. =
  38. 38.What is the HCF of 15 and 40?
  39. 39.Is 2/3 in its simplest form? (a) Yes (b) No
  40. 40.Is 7/10 in its simplest form? (a) Yes (b) No

Answer key

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

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