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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 820 · 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 6/12 in its simplest form? (a) No (b) Yes
  2. 2.Write 18/30 in its simplest form. =
  3. 3.Is 28/40 in its simplest form? (a) No (b) Yes
  4. 4.Write 56/72 in its simplest form. =
  5. 5.What is the HCF of 15 and 27?
  6. 6.Write 63/81 in its simplest form. =
  7. 7.Is 20/28 in its simplest form? (a) Yes (b) No
  8. 8.Is 32/36 in its simplest form? (a) No (b) Yes
  9. 9.What is the HCF of 24 and 27?
  10. 10.Is 2/3 in its simplest form? (a) Yes (b) No
  11. 11.What is the HCF of 5 and 50?
  12. 12.Is 6/60 in its simplest form? (a) Yes (b) No
  13. 13.What is the HCF of 27 and 36?
  14. 14.Write 9/15 in its simplest form. =
  15. 15.What is the HCF of 8 and 64?
  16. 16.Is 4/9 in its simplest form? (a) Yes (b) No
  17. 17.What is the HCF of 49 and 63?
  18. 18.Write 28/35 in its simplest form. =
  19. 19.What is the HCF of 6 and 20?
  20. 20.Write 8/18 in its simplest form. =
  21. 21.Is 4/40 in its simplest form? (a) No (b) Yes
  22. 22.Is 3/21 in its simplest form? (a) Yes (b) No
  23. 23.Write 3/6 in its simplest form. =
  24. 24.Write 6/30 in its simplest form. =
  25. 25.Is 6/18 in its simplest form? (a) No (b) Yes
  26. 26.Write 35/49 in its simplest form. =
  27. 27.What is the HCF of 6 and 8?
  28. 28.Write 45/72 in its simplest form. =
  29. 29.Is 1/7 in its simplest form? (a) No (b) Yes
  30. 30.Is 9/10 in its simplest form? (a) No (b) Yes
  31. 31.Write 4/28 in its simplest form. =
  32. 32.Is 7/8 in its simplest form? (a) No (b) Yes
  33. 33.What is the HCF of 21 and 28?
  34. 34.Write 12/28 in its simplest form. =
  35. 35.What is the HCF of 12 and 18?
  36. 36.Write 16/18 in its simplest form. =
  37. 37.Is 3/4 in its simplest form? (a) No (b) Yes
  38. 38.What is the HCF of 2 and 12?
  39. 39.Is 5/6 in its simplest form? (a) No (b) Yes
  40. 40.Is 2/8 in its simplest form? (a) No (b) Yes

Answer key

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

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