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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 585 · 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 28?
  2. 2.Is 5/6 in its simplest form? (a) No (b) Yes
  3. 3.Write 64/72 in its simplest form. =
  4. 4.What is the HCF of 42 and 49?
  5. 5.What is the HCF of 16 and 28?
  6. 6.Is 18/42 in its simplest form? (a) No (b) Yes
  7. 7.Is 20/25 in its simplest form? (a) Yes (b) No
  8. 8.Is 1/4 in its simplest form? (a) No (b) Yes
  9. 9.Write 4/28 in its simplest form. =
  10. 10.Is 9/10 in its simplest form? (a) Yes (b) No
  11. 11.Is 30/42 in its simplest form? (a) No (b) Yes
  12. 12.Is 2/14 in its simplest form? (a) No (b) Yes
  13. 13.What is the HCF of 3 and 12?
  14. 14.Write 12/20 in its simplest form. =
  15. 15.What is the HCF of 32 and 40?
  16. 16.What is the HCF of 3 and 6?
  17. 17.Write 28/35 in its simplest form. =
  18. 18.What is the HCF of 30 and 35?
  19. 19.What is the HCF of 7 and 63?
  20. 20.Is 5/7 in its simplest form? (a) No (b) Yes
  21. 21.Is 3/4 in its simplest form? (a) No (b) Yes
  22. 22.Write 18/27 in its simplest form. =
  23. 23.Write 56/72 in its simplest form. =
  24. 24.Write 7/42 in its simplest form. =
  25. 25.Is 1/2 in its simplest form? (a) No (b) Yes
  26. 26.Is 3/10 in its simplest form? (a) No (b) Yes
  27. 27.Write 16/36 in its simplest form. =
  28. 28.What is the HCF of 24 and 42?
  29. 29.Is 35/45 in its simplest form? (a) No (b) Yes
  30. 30.What is the HCF of 9 and 27?
  31. 31.What is the HCF of 6 and 21?
  32. 32.Write 9/27 in its simplest form. =
  33. 33.What is the HCF of 10 and 15?
  34. 34.Is 9/24 in its simplest form? (a) Yes (b) No
  35. 35.Write 36/63 in its simplest form. =
  36. 36.What is the HCF of 40 and 56?
  37. 37.Write 6/36 in its simplest form. =
  38. 38.Is 20/35 in its simplest form? (a) No (b) Yes
  39. 39.Is 18/30 in its simplest form? (a) No (b) Yes
  40. 40.Write 8/64 in its simplest form. =

Answer key

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

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