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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 177 · 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 3/21 in its simplest form? (a) No (b) Yes
  2. 2.Write 40/56 in its simplest form. =
  3. 3.Is 6/24 in its simplest form? (a) Yes (b) No
  4. 4.Is 6/27 in its simplest form? (a) No (b) Yes
  5. 5.Is 12/28 in its simplest form? (a) No (b) Yes
  6. 6.What is the HCF of 2 and 8?
  7. 7.Write 20/32 in its simplest form. =
  8. 8.Write 4/18 in its simplest form. =
  9. 9.What is the HCF of 6 and 15?
  10. 10.Write 4/24 in its simplest form. =
  11. 11.Write 6/8 in its simplest form. =
  12. 12.What is the HCF of 3 and 15?
  13. 13.Write 10/45 in its simplest form. =
  14. 14.Is 3/4 in its simplest form? (a) No (b) Yes
  15. 15.Is 4/36 in its simplest form? (a) No (b) Yes
  16. 16.Is 12/27 in its simplest form? (a) No (b) Yes
  17. 17.Write 5/40 in its simplest form. =
  18. 18.Write 6/18 in its simplest form. =
  19. 19.Is 4/16 in its simplest form? (a) Yes (b) No
  20. 20.Write 7/49 in its simplest form. =
  21. 21.Is 1/9 in its simplest form? (a) Yes (b) No
  22. 22.What is the HCF of 8 and 32?
  23. 23.Write 8/18 in its simplest form. =
  24. 24.Write 30/54 in its simplest form. =
  25. 25.Write 3/9 in its simplest form. =
  26. 26.Write 15/35 in its simplest form. =
  27. 27.Is 1/3 in its simplest form? (a) No (b) Yes
  28. 28.What is the HCF of 18 and 63?
  29. 29.Is 4/5 in its simplest form? (a) No (b) Yes
  30. 30.Write 48/56 in its simplest form. =
  31. 31.Is 15/24 in its simplest form? (a) No (b) Yes
  32. 32.Write 16/56 in its simplest form. =
  33. 33.Write 24/27 in its simplest form. =
  34. 34.Write 7/56 in its simplest form. =
  35. 35.What is the HCF of 12 and 32?
  36. 36.What is the HCF of 24 and 54?
  37. 37.Write 9/12 in its simplest form. =
  38. 38.Is 30/42 in its simplest form? (a) No (b) Yes
  39. 39.Write 3/12 in its simplest form. =
  40. 40.Is 7/10 in its simplest form? (a) No (b) Yes

Answer key

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

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