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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 155 · 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 24 and 32?
  2. 2.Write 10/14 in its simplest form. =
  3. 3.What is the HCF of 6 and 9?
  4. 4.Is 16/20 in its simplest form? (a) Yes (b) No
  5. 5.Write 48/56 in its simplest form. =
  6. 6.Is 4/12 in its simplest form? (a) No (b) Yes
  7. 7.Is 6/42 in its simplest form? (a) Yes (b) No
  8. 8.What is the HCF of 8 and 12?
  9. 9.Write 20/24 in its simplest form. =
  10. 10.What is the HCF of 12 and 21?
  11. 11.Write 42/48 in its simplest form. =
  12. 12.What is the HCF of 24 and 54?
  13. 13.Write 9/12 in its simplest form. =
  14. 14.Is 1/2 in its simplest form? (a) Yes (b) No
  15. 15.Is 1/9 in its simplest form? (a) Yes (b) No
  16. 16.Is 36/42 in its simplest form? (a) Yes (b) No
  17. 17.Is 30/54 in its simplest form? (a) No (b) Yes
  18. 18.Is 18/60 in its simplest form? (a) Yes (b) No
  19. 19.Is 42/60 in its simplest form? (a) No (b) Yes
  20. 20.Is 12/14 in its simplest form? (a) No (b) Yes
  21. 21.Is 4/16 in its simplest form? (a) No (b) Yes
  22. 22.Is 5/40 in its simplest form? (a) No (b) Yes
  23. 23.Is 8/9 in its simplest form? (a) Yes (b) No
  24. 24.What is the HCF of 6 and 15?
  25. 25.Write 14/18 in its simplest form. =
  26. 26.Write 63/81 in its simplest form. =
  27. 27.What is the HCF of 2 and 20?
  28. 28.Is 30/35 in its simplest form? (a) No (b) Yes
  29. 29.Write 24/30 in its simplest form. =
  30. 30.Is 1/4 in its simplest form? (a) Yes (b) No
  31. 31.What is the HCF of 16 and 56?
  32. 32.Write 40/56 in its simplest form. =
  33. 33.What is the HCF of 10 and 45?
  34. 34.What is the HCF of 14 and 21?
  35. 35.What is the HCF of 21 and 35?
  36. 36.What is the HCF of 4 and 6?
  37. 37.Is 1/3 in its simplest form? (a) Yes (b) No
  38. 38.Is 3/5 in its simplest form? (a) No (b) Yes
  39. 39.What is the HCF of 20 and 28?
  40. 40.What is the HCF of 24 and 27?

Answer key

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

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