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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 971 · 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 32/40 in its simplest form. =
  2. 2.Is 5/6 in its simplest form? (a) Yes (b) No
  3. 3.Write 48/54 in its simplest form. =
  4. 4.Is 3/4 in its simplest form? (a) No (b) Yes
  5. 5.Is 36/42 in its simplest form? (a) Yes (b) No
  6. 6.What is the HCF of 9 and 81?
  7. 7.What is the HCF of 32 and 36?
  8. 8.What is the HCF of 35 and 50?
  9. 9.What is the HCF of 5 and 25?
  10. 10.What is the HCF of 24 and 40?
  11. 11.Write 7/63 in its simplest form. =
  12. 12.Is 20/35 in its simplest form? (a) No (b) Yes
  13. 13.Is 3/10 in its simplest form? (a) No (b) Yes
  14. 14.Write 42/54 in its simplest form. =
  15. 15.What is the HCF of 3 and 12?
  16. 16.Is 35/40 in its simplest form? (a) No (b) Yes
  17. 17.Write 15/50 in its simplest form. =
  18. 18.Is 25/40 in its simplest form? (a) No (b) Yes
  19. 19.What is the HCF of 24 and 30?
  20. 20.Write 6/24 in its simplest form. =
  21. 21.Is 5/45 in its simplest form? (a) Yes (b) No
  22. 22.Is 2/9 in its simplest form? (a) Yes (b) No
  23. 23.Is 1/4 in its simplest form? (a) No (b) Yes
  24. 24.Is 1/2 in its simplest form? (a) No (b) Yes
  25. 25.What is the HCF of 5 and 30?
  26. 26.What is the HCF of 4 and 32?
  27. 27.Is 4/16 in its simplest form? (a) No (b) Yes
  28. 28.What is the HCF of 6 and 42?
  29. 29.What is the HCF of 27 and 30?
  30. 30.Write 15/27 in its simplest form. =
  31. 31.Write 5/10 in its simplest form. =
  32. 32.What is the HCF of 15 and 21?
  33. 33.Is 12/40 in its simplest form? (a) Yes (b) No
  34. 34.Is 10/45 in its simplest form? (a) Yes (b) No
  35. 35.Is 8/10 in its simplest form? (a) No (b) Yes
  36. 36.What is the HCF of 9 and 45?
  37. 37.Write 16/18 in its simplest form. =
  38. 38.Write 18/81 in its simplest form. =
  39. 39.Is 30/36 in its simplest form? (a) No (b) Yes
  40. 40.Is 5/15 in its simplest form? (a) No (b) Yes

Answer key

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

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