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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 481 · 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 20/36 in its simplest form? (a) Yes (b) No
  2. 2.What is the HCF of 36 and 81?
  3. 3.Write 9/54 in its simplest form. =
  4. 4.What is the HCF of 18 and 48?
  5. 5.Write 12/54 in its simplest form. =
  6. 6.Is 1/8 in its simplest form? (a) No (b) Yes
  7. 7.Is 2/8 in its simplest form? (a) Yes (b) No
  8. 8.Is 8/9 in its simplest form? (a) No (b) Yes
  9. 9.What is the HCF of 40 and 48?
  10. 10.Write 6/36 in its simplest form. =
  11. 11.What is the HCF of 48 and 54?
  12. 12.Write 27/30 in its simplest form. =
  13. 13.What is the HCF of 28 and 35?
  14. 14.Is 8/28 in its simplest form? (a) Yes (b) No
  15. 15.Write 4/6 in its simplest form. =
  16. 16.Write 5/10 in its simplest form. =
  17. 17.Write 27/45 in its simplest form. =
  18. 18.What is the HCF of 5 and 30?
  19. 19.Write 6/8 in its simplest form. =
  20. 20.Write 24/32 in its simplest form. =
  21. 21.What is the HCF of 6 and 21?
  22. 22.What is the HCF of 24 and 40?
  23. 23.Is 6/16 in its simplest form? (a) No (b) Yes
  24. 24.Is 14/20 in its simplest form? (a) No (b) Yes
  25. 25.What is the HCF of 56 and 80?
  26. 26.What is the HCF of 25 and 35?
  27. 27.What is the HCF of 45 and 72?
  28. 28.What is the HCF of 20 and 32?
  29. 29.What is the HCF of 35 and 49?
  30. 30.What is the HCF of 27 and 45?
  31. 31.What is the HCF of 12 and 42?
  32. 32.Is 4/5 in its simplest form? (a) No (b) Yes
  33. 33.Write 21/35 in its simplest form. =
  34. 34.Is 1/9 in its simplest form? (a) Yes (b) No
  35. 35.Is 6/8 in its simplest form? (a) No (b) Yes
  36. 36.What is the HCF of 15 and 20?
  37. 37.Is 9/10 in its simplest form? (a) Yes (b) No
  38. 38.Is 28/40 in its simplest form? (a) Yes (b) No
  39. 39.Is 48/54 in its simplest form? (a) Yes (b) No
  40. 40.Is 6/20 in its simplest form? (a) No (b) Yes

Answer key

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

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