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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 420 · 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 42/48 in its simplest form? (a) No (b) Yes
  2. 2.Write 5/35 in its simplest form. =
  3. 3.What is the HCF of 6 and 20?
  4. 4.What is the HCF of 21 and 56?
  5. 5.What is the HCF of 64 and 72?
  6. 6.Is 12/30 in its simplest form? (a) Yes (b) No
  7. 7.Is 27/30 in its simplest form? (a) No (b) Yes
  8. 8.Write 7/42 in its simplest form. =
  9. 9.What is the HCF of 27 and 30?
  10. 10.What is the HCF of 24 and 64?
  11. 11.What is the HCF of 7 and 42?
  12. 12.Write 3/18 in its simplest form. =
  13. 13.Write 6/24 in its simplest form. =
  14. 14.Write 35/49 in its simplest form. =
  15. 15.What is the HCF of 12 and 15?
  16. 16.Write 5/30 in its simplest form. =
  17. 17.What is the HCF of 21 and 27?
  18. 18.Write 12/18 in its simplest form. =
  19. 19.Is 5/9 in its simplest form? (a) No (b) Yes
  20. 20.Write 7/35 in its simplest form. =
  21. 21.Is 3/4 in its simplest form? (a) Yes (b) No
  22. 22.Write 7/14 in its simplest form. =
  23. 23.Write 8/24 in its simplest form. =
  24. 24.What is the HCF of 24 and 27?
  25. 25.Is 4/5 in its simplest form? (a) Yes (b) No
  26. 26.Is 4/16 in its simplest form? (a) Yes (b) No
  27. 27.Write 6/20 in its simplest form. =
  28. 28.Write 16/72 in its simplest form. =
  29. 29.What is the HCF of 35 and 63?
  30. 30.What is the HCF of 15 and 24?
  31. 31.What is the HCF of 3 and 30?
  32. 32.What is the HCF of 12 and 27?
  33. 33.What is the HCF of 9 and 30?
  34. 34.What is the HCF of 9 and 72?
  35. 35.Is 9/21 in its simplest form? (a) No (b) Yes
  36. 36.What is the HCF of 24 and 42?
  37. 37.Write 28/36 in its simplest form. =
  38. 38.Write 40/56 in its simplest form. =
  39. 39.Write 8/10 in its simplest form. =
  40. 40.Is 7/10 in its simplest form? (a) Yes (b) No

Answer key

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

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