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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 330 · 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 15/27 in its simplest form? (a) No (b) Yes
  2. 2.Is 6/7 in its simplest form? (a) No (b) Yes
  3. 3.What is the HCF of 10 and 15?
  4. 4.Write 7/28 in its simplest form. =
  5. 5.Write 18/63 in its simplest form. =
  6. 6.Is 10/16 in its simplest form? (a) No (b) Yes
  7. 7.Is 4/9 in its simplest form? (a) No (b) Yes
  8. 8.Write 6/10 in its simplest form. =
  9. 9.Write 4/8 in its simplest form. =
  10. 10.What is the HCF of 36 and 40?
  11. 11.What is the HCF of 9 and 27?
  12. 12.Is 5/9 in its simplest form? (a) No (b) Yes
  13. 13.What is the HCF of 2 and 20?
  14. 14.Is 1/9 in its simplest form? (a) No (b) Yes
  15. 15.Write 49/63 in its simplest form. =
  16. 16.Write 4/32 in its simplest form. =
  17. 17.Write 5/15 in its simplest form. =
  18. 18.Write 49/70 in its simplest form. =
  19. 19.What is the HCF of 35 and 49?
  20. 20.Write 2/6 in its simplest form. =
  21. 21.Write 35/49 in its simplest form. =
  22. 22.What is the HCF of 25 and 40?
  23. 23.Is 6/21 in its simplest form? (a) No (b) Yes
  24. 24.Write 15/27 in its simplest form. =
  25. 25.Is 6/10 in its simplest form? (a) Yes (b) No
  26. 26.Is 15/25 in its simplest form? (a) No (b) Yes
  27. 27.Write 4/16 in its simplest form. =
  28. 28.Is 30/48 in its simplest form? (a) Yes (b) No
  29. 29.Write 24/54 in its simplest form. =
  30. 30.What is the HCF of 8 and 16?
  31. 31.What is the HCF of 25 and 30?
  32. 32.Is 4/5 in its simplest form? (a) No (b) Yes
  33. 33.Write 32/72 in its simplest form. =
  34. 34.What is the HCF of 3 and 24?
  35. 35.What is the HCF of 24 and 80?
  36. 36.What is the HCF of 20 and 24?
  37. 37.What is the HCF of 5 and 30?
  38. 38.What is the HCF of 28 and 32?
  39. 39.Write 4/36 in its simplest form. =
  40. 40.What is the HCF of 9 and 18?

Answer key

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

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