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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 181 · 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 4/6 in its simplest form? (a) Yes (b) No
  2. 2.What is the HCF of 8 and 32?
  3. 3.What is the HCF of 27 and 90?
  4. 4.Write 12/18 in its simplest form. =
  5. 5.Write 16/72 in its simplest form. =
  6. 6.What is the HCF of 9 and 24?
  7. 7.Is 40/45 in its simplest form? (a) Yes (b) No
  8. 8.Is 6/7 in its simplest form? (a) Yes (b) No
  9. 9.Write 4/12 in its simplest form. =
  10. 10.Write 3/27 in its simplest form. =
  11. 11.Is 4/9 in its simplest form? (a) No (b) Yes
  12. 12.Write 10/35 in its simplest form. =
  13. 13.Is 3/9 in its simplest form? (a) Yes (b) No
  14. 14.Write 42/49 in its simplest form. =
  15. 15.Write 7/56 in its simplest form. =
  16. 16.Write 6/9 in its simplest form. =
  17. 17.Is 18/60 in its simplest form? (a) Yes (b) No
  18. 18.Write 10/16 in its simplest form. =
  19. 19.Is 2/3 in its simplest form? (a) No (b) Yes
  20. 20.Is 4/7 in its simplest form? (a) Yes (b) No
  21. 21.Write 9/45 in its simplest form. =
  22. 22.Write 30/35 in its simplest form. =
  23. 23.Write 20/35 in its simplest form. =
  24. 24.What is the HCF of 36 and 40?
  25. 25.What is the HCF of 48 and 54?
  26. 26.Is 9/10 in its simplest form? (a) Yes (b) No
  27. 27.Is 8/9 in its simplest form? (a) No (b) Yes
  28. 28.What is the HCF of 24 and 40?
  29. 29.Write 8/64 in its simplest form. =
  30. 30.What is the HCF of 7 and 35?
  31. 31.Write 14/21 in its simplest form. =
  32. 32.What is the HCF of 12 and 20?
  33. 33.Is 20/24 in its simplest form? (a) Yes (b) No
  34. 34.Is 18/42 in its simplest form? (a) No (b) Yes
  35. 35.What is the HCF of 2 and 12?
  36. 36.Write 12/15 in its simplest form. =
  37. 37.Write 5/10 in its simplest form. =
  38. 38.Write 14/18 in its simplest form. =
  39. 39.Is 1/2 in its simplest form? (a) No (b) Yes
  40. 40.What is the HCF of 12 and 40?

Answer key

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

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