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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 826 · 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 72/81 in its simplest form. =
  2. 2.Write 4/18 in its simplest form. =
  3. 3.Is 8/12 in its simplest form? (a) Yes (b) No
  4. 4.What is the HCF of 32 and 56?
  5. 5.What is the HCF of 8 and 14?
  6. 6.Write 12/15 in its simplest form. =
  7. 7.Write 45/50 in its simplest form. =
  8. 8.Is 2/7 in its simplest form? (a) No (b) Yes
  9. 9.What is the HCF of 40 and 56?
  10. 10.Is 1/2 in its simplest form? (a) Yes (b) No
  11. 11.Write 9/81 in its simplest form. =
  12. 12.What is the HCF of 2 and 10?
  13. 13.Write 16/40 in its simplest form. =
  14. 14.What is the HCF of 25 and 40?
  15. 15.What is the HCF of 4 and 6?
  16. 16.What is the HCF of 12 and 40?
  17. 17.Is 1/9 in its simplest form? (a) No (b) Yes
  18. 18.Is 1/6 in its simplest form? (a) No (b) Yes
  19. 19.Write 6/24 in its simplest form. =
  20. 20.Is 12/42 in its simplest form? (a) Yes (b) No
  21. 21.Write 5/20 in its simplest form. =
  22. 22.What is the HCF of 7 and 35?
  23. 23.Write 35/42 in its simplest form. =
  24. 24.Is 4/16 in its simplest form? (a) Yes (b) No
  25. 25.Write 5/25 in its simplest form. =
  26. 26.Is 20/28 in its simplest form? (a) No (b) Yes
  27. 27.Write 20/35 in its simplest form. =
  28. 28.Write 8/40 in its simplest form. =
  29. 29.Write 14/49 in its simplest form. =
  30. 30.Is 2/9 in its simplest form? (a) No (b) Yes
  31. 31.What is the HCF of 14 and 20?
  32. 32.What is the HCF of 35 and 42?
  33. 33.Write 12/16 in its simplest form. =
  34. 34.Write 10/25 in its simplest form. =
  35. 35.Write 3/6 in its simplest form. =
  36. 36.What is the HCF of 21 and 35?
  37. 37.Write 6/10 in its simplest form. =
  38. 38.Write 16/56 in its simplest form. =
  39. 39.Write 21/70 in its simplest form. =
  40. 40.Is 5/45 in its simplest form? (a) Yes (b) No

Answer key

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

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