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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 768 · 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 20 and 35?
  2. 2.What is the HCF of 32 and 40?
  3. 3.Write 9/27 in its simplest form. =
  4. 4.What is the HCF of 4 and 32?
  5. 5.Is 9/21 in its simplest form? (a) No (b) Yes
  6. 6.What is the HCF of 6 and 27?
  7. 7.Is 2/3 in its simplest form? (a) No (b) Yes
  8. 8.What is the HCF of 56 and 72?
  9. 9.Is 6/16 in its simplest form? (a) Yes (b) No
  10. 10.What is the HCF of 21 and 70?
  11. 11.Is 8/10 in its simplest form? (a) No (b) Yes
  12. 12.Write 27/72 in its simplest form. =
  13. 13.Write 28/49 in its simplest form. =
  14. 14.Is 6/7 in its simplest form? (a) No (b) Yes
  15. 15.Is 7/10 in its simplest form? (a) Yes (b) No
  16. 16.Is 1/6 in its simplest form? (a) No (b) Yes
  17. 17.What is the HCF of 18 and 45?
  18. 18.Is 5/7 in its simplest form? (a) No (b) Yes
  19. 19.Write 24/32 in its simplest form. =
  20. 20.What is the HCF of 14 and 18?
  21. 21.Write 4/16 in its simplest form. =
  22. 22.Write 30/48 in its simplest form. =
  23. 23.Write 9/15 in its simplest form. =
  24. 24.Write 32/36 in its simplest form. =
  25. 25.Is 28/36 in its simplest form? (a) No (b) Yes
  26. 26.Write 48/56 in its simplest form. =
  27. 27.Is 9/10 in its simplest form? (a) No (b) Yes
  28. 28.Write 20/35 in its simplest form. =
  29. 29.Write 30/42 in its simplest form. =
  30. 30.Write 12/54 in its simplest form. =
  31. 31.What is the HCF of 15 and 21?
  32. 32.Write 3/30 in its simplest form. =
  33. 33.Write 9/21 in its simplest form. =
  34. 34.Write 42/49 in its simplest form. =
  35. 35.Write 8/12 in its simplest form. =
  36. 36.What is the HCF of 24 and 54?
  37. 37.Write 8/40 in its simplest form. =
  38. 38.What is the HCF of 8 and 18?
  39. 39.Is 15/25 in its simplest form? (a) Yes (b) No
  40. 40.What is the HCF of 8 and 56?

Answer key

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

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