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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 153 · 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 36/42 in its simplest form? (a) Yes (b) No
  2. 2.Write 12/15 in its simplest form. =
  3. 3.What is the HCF of 12 and 21?
  4. 4.What is the HCF of 10 and 25?
  5. 5.Is 2/16 in its simplest form? (a) Yes (b) No
  6. 6.Is 4/6 in its simplest form? (a) Yes (b) No
  7. 7.What is the HCF of 8 and 56?
  8. 8.Is 7/8 in its simplest form? (a) No (b) Yes
  9. 9.Write 8/80 in its simplest form. =
  10. 10.Is 2/5 in its simplest form? (a) Yes (b) No
  11. 11.Write 25/40 in its simplest form. =
  12. 12.What is the HCF of 15 and 35?
  13. 13.Is 1/5 in its simplest form? (a) No (b) Yes
  14. 14.What is the HCF of 24 and 27?
  15. 15.What is the HCF of 8 and 48?
  16. 16.What is the HCF of 14 and 16?
  17. 17.Write 2/10 in its simplest form. =
  18. 18.Is 1/9 in its simplest form? (a) No (b) Yes
  19. 19.Is 6/21 in its simplest form? (a) No (b) Yes
  20. 20.Is 6/36 in its simplest form? (a) Yes (b) No
  21. 21.What is the HCF of 24 and 32?
  22. 22.Write 18/21 in its simplest form. =
  23. 23.Write 9/72 in its simplest form. =
  24. 24.What is the HCF of 6 and 60?
  25. 25.Is 12/40 in its simplest form? (a) Yes (b) No
  26. 26.Write 21/28 in its simplest form. =
  27. 27.What is the HCF of 25 and 45?
  28. 28.Write 30/36 in its simplest form. =
  29. 29.Write 12/21 in its simplest form. =
  30. 30.Is 4/8 in its simplest form? (a) Yes (b) No
  31. 31.Write 14/21 in its simplest form. =
  32. 32.Is 15/50 in its simplest form? (a) Yes (b) No
  33. 33.Is 4/9 in its simplest form? (a) Yes (b) No
  34. 34.What is the HCF of 14 and 20?
  35. 35.What is the HCF of 21 and 49?
  36. 36.What is the HCF of 9 and 81?
  37. 37.What is the HCF of 14 and 18?
  38. 38.Is 24/27 in its simplest form? (a) No (b) Yes
  39. 39.Write 7/28 in its simplest form. =
  40. 40.Write 3/24 in its simplest form. =

Answer key

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

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