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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 34 · 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.Write 4/16 in its simplest form. =
  2. 2.What is the HCF of 72 and 81?
  3. 3.What is the HCF of 7 and 42?
  4. 4.Write 7/14 in its simplest form. =
  5. 5.Write 2/16 in its simplest form. =
  6. 6.What is the HCF of 24 and 54?
  7. 7.Is 1/8 in its simplest form? (a) No (b) Yes
  8. 8.Write 45/50 in its simplest form. =
  9. 9.Write 15/27 in its simplest form. =
  10. 10.Write 6/21 in its simplest form. =
  11. 11.What is the HCF of 36 and 45?
  12. 12.Write 35/40 in its simplest form. =
  13. 13.Write 15/24 in its simplest form. =
  14. 14.Write 24/32 in its simplest form. =
  15. 15.What is the HCF of 2 and 16?
  16. 16.Write 12/16 in its simplest form. =
  17. 17.Is 1/7 in its simplest form? (a) Yes (b) No
  18. 18.Write 24/64 in its simplest form. =
  19. 19.What is the HCF of 8 and 48?
  20. 20.What is the HCF of 2 and 20?
  21. 21.Write 8/28 in its simplest form. =
  22. 22.Is 5/50 in its simplest form? (a) No (b) Yes
  23. 23.Is 2/9 in its simplest form? (a) Yes (b) No
  24. 24.Write 49/70 in its simplest form. =
  25. 25.Write 4/36 in its simplest form. =
  26. 26.Write 4/18 in its simplest form. =
  27. 27.Is 12/16 in its simplest form? (a) No (b) Yes
  28. 28.What is the HCF of 8 and 32?
  29. 29.What is the HCF of 16 and 56?
  30. 30.Is 24/42 in its simplest form? (a) Yes (b) No
  31. 31.What is the HCF of 4 and 40?
  32. 32.What is the HCF of 5 and 15?
  33. 33.What is the HCF of 2 and 4?
  34. 34.Is 1/4 in its simplest form? (a) Yes (b) No
  35. 35.Write 6/18 in its simplest form. =
  36. 36.Is 8/20 in its simplest form? (a) No (b) Yes
  37. 37.Is 8/9 in its simplest form? (a) No (b) Yes
  38. 38.Is 1/2 in its simplest form? (a) Yes (b) No
  39. 39.Write 4/28 in its simplest form. =
  40. 40.What is the HCF of 12 and 27?

Answer key

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

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