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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 586 · 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 2/7 in its simplest form? (a) Yes (b) No
  2. 2.What is the HCF of 18 and 20?
  3. 3.Write 8/80 in its simplest form. =
  4. 4.What is the HCF of 4 and 32?
  5. 5.Is 12/18 in its simplest form? (a) Yes (b) No
  6. 6.Write 2/18 in its simplest form. =
  7. 7.What is the HCF of 8 and 72?
  8. 8.Is 2/6 in its simplest form? (a) No (b) Yes
  9. 9.Is 6/54 in its simplest form? (a) No (b) Yes
  10. 10.What is the HCF of 10 and 15?
  11. 11.Is 20/28 in its simplest form? (a) Yes (b) No
  12. 12.What is the HCF of 9 and 54?
  13. 13.What is the HCF of 9 and 30?
  14. 14.Write 2/6 in its simplest form. =
  15. 15.Is 18/24 in its simplest form? (a) No (b) Yes
  16. 16.Write 72/81 in its simplest form. =
  17. 17.Write 14/16 in its simplest form. =
  18. 18.Write 3/12 in its simplest form. =
  19. 19.Write 42/48 in its simplest form. =
  20. 20.Write 18/48 in its simplest form. =
  21. 21.Write 2/14 in its simplest form. =
  22. 22.What is the HCF of 9 and 81?
  23. 23.What is the HCF of 8 and 18?
  24. 24.Is 12/54 in its simplest form? (a) Yes (b) No
  25. 25.Is 6/8 in its simplest form? (a) Yes (b) No
  26. 26.Is 24/42 in its simplest form? (a) Yes (b) No
  27. 27.What is the HCF of 32 and 56?
  28. 28.Is 1/6 in its simplest form? (a) No (b) Yes
  29. 29.Is 2/9 in its simplest form? (a) Yes (b) No
  30. 30.What is the HCF of 9 and 27?
  31. 31.What is the HCF of 45 and 50?
  32. 32.What is the HCF of 49 and 56?
  33. 33.Is 9/10 in its simplest form? (a) No (b) Yes
  34. 34.Is 9/12 in its simplest form? (a) No (b) Yes
  35. 35.Write 14/21 in its simplest form. =
  36. 36.What is the HCF of 15 and 18?
  37. 37.Write 2/12 in its simplest form. =
  38. 38.Is 5/6 in its simplest form? (a) No (b) Yes
  39. 39.Is 4/28 in its simplest form? (a) No (b) Yes
  40. 40.Write 32/40 in its simplest form. =

Answer key

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

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