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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 388 · 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 12/14 in its simplest form? (a) Yes (b) No
  2. 2.What is the HCF of 8 and 36?
  3. 3.Write 40/72 in its simplest form. =
  4. 4.Write 24/27 in its simplest form. =
  5. 5.Is 2/3 in its simplest form? (a) Yes (b) No
  6. 6.Is 15/18 in its simplest form? (a) No (b) Yes
  7. 7.Is 3/7 in its simplest form? (a) Yes (b) No
  8. 8.Is 45/50 in its simplest form? (a) No (b) Yes
  9. 9.What is the HCF of 15 and 24?
  10. 10.Write 81/90 in its simplest form. =
  11. 11.What is the HCF of 72 and 81?
  12. 12.Is 4/9 in its simplest form? (a) No (b) Yes
  13. 13.What is the HCF of 25 and 35?
  14. 14.Is 15/35 in its simplest form? (a) No (b) Yes
  15. 15.Write 40/45 in its simplest form. =
  16. 16.Write 6/42 in its simplest form. =
  17. 17.Write 4/28 in its simplest form. =
  18. 18.Write 18/30 in its simplest form. =
  19. 19.Write 16/24 in its simplest form. =
  20. 20.Is 20/45 in its simplest form? (a) Yes (b) No
  21. 21.Is 1/10 in its simplest form? (a) No (b) Yes
  22. 22.Write 6/24 in its simplest form. =
  23. 23.Is 2/4 in its simplest form? (a) No (b) Yes
  24. 24.Write 27/45 in its simplest form. =
  25. 25.Is 42/54 in its simplest form? (a) Yes (b) No
  26. 26.Is 3/18 in its simplest form? (a) Yes (b) No
  27. 27.Is 3/12 in its simplest form? (a) Yes (b) No
  28. 28.Is 2/9 in its simplest form? (a) No (b) Yes
  29. 29.Write 6/27 in its simplest form. =
  30. 30.What is the HCF of 6 and 9?
  31. 31.What is the HCF of 5 and 40?
  32. 32.Write 9/15 in its simplest form. =
  33. 33.Write 8/48 in its simplest form. =
  34. 34.Write 21/27 in its simplest form. =
  35. 35.Write 24/30 in its simplest form. =
  36. 36.What is the HCF of 35 and 49?
  37. 37.Is 12/20 in its simplest form? (a) No (b) Yes
  38. 38.Write 7/42 in its simplest form. =
  39. 39.Write 4/32 in its simplest form. =
  40. 40.Write 8/56 in its simplest form. =

Answer key

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

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