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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 423 · 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 10/12 in its simplest form. =
  2. 2.Is 3/10 in its simplest form? (a) No (b) Yes
  3. 3.Write 3/24 in its simplest form. =
  4. 4.Is 12/54 in its simplest form? (a) No (b) Yes
  5. 5.What is the HCF of 8 and 40?
  6. 6.Is 40/45 in its simplest form? (a) No (b) Yes
  7. 7.Write 3/27 in its simplest form. =
  8. 8.Write 7/56 in its simplest form. =
  9. 9.Is 1/6 in its simplest form? (a) No (b) Yes
  10. 10.Is 4/28 in its simplest form? (a) Yes (b) No
  11. 11.Is 9/30 in its simplest form? (a) Yes (b) No
  12. 12.Is 8/10 in its simplest form? (a) Yes (b) No
  13. 13.Is 15/25 in its simplest form? (a) No (b) Yes
  14. 14.Write 8/64 in its simplest form. =
  15. 15.Write 30/54 in its simplest form. =
  16. 16.Write 72/81 in its simplest form. =
  17. 17.Is 21/27 in its simplest form? (a) No (b) Yes
  18. 18.Write 12/21 in its simplest form. =
  19. 19.What is the HCF of 14 and 20?
  20. 20.Is 21/24 in its simplest form? (a) Yes (b) No
  21. 21.Write 21/70 in its simplest form. =
  22. 22.Write 28/63 in its simplest form. =
  23. 23.Is 4/36 in its simplest form? (a) Yes (b) No
  24. 24.What is the HCF of 5 and 20?
  25. 25.Write 12/18 in its simplest form. =
  26. 26.Write 16/40 in its simplest form. =
  27. 27.What is the HCF of 24 and 64?
  28. 28.Write 7/42 in its simplest form. =
  29. 29.Write 21/35 in its simplest form. =
  30. 30.Write 42/54 in its simplest form. =
  31. 31.Is 6/10 in its simplest form? (a) Yes (b) No
  32. 32.What is the HCF of 2 and 20?
  33. 33.What is the HCF of 24 and 32?
  34. 34.Write 12/54 in its simplest form. =
  35. 35.Write 15/20 in its simplest form. =
  36. 36.What is the HCF of 8 and 48?
  37. 37.Is 2/7 in its simplest form? (a) Yes (b) No
  38. 38.Is 1/8 in its simplest form? (a) No (b) Yes
  39. 39.Write 5/45 in its simplest form. =
  40. 40.Is 8/36 in its simplest form? (a) Yes (b) No

Answer key

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

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