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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 397 · 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 5/6 in its simplest form? (a) Yes (b) No
  2. 2.What is the HCF of 27 and 36?
  3. 3.Write 36/63 in its simplest form. =
  4. 4.Write 24/30 in its simplest form. =
  5. 5.Is 3/5 in its simplest form? (a) No (b) Yes
  6. 6.Write 2/4 in its simplest form. =
  7. 7.Is 3/7 in its simplest form? (a) Yes (b) No
  8. 8.Write 3/21 in its simplest form. =
  9. 9.Write 81/90 in its simplest form. =
  10. 10.What is the HCF of 6 and 9?
  11. 11.What is the HCF of 7 and 63?
  12. 12.Write 8/40 in its simplest form. =
  13. 13.Is 6/36 in its simplest form? (a) Yes (b) No
  14. 14.What is the HCF of 8 and 10?
  15. 15.Is 4/5 in its simplest form? (a) No (b) Yes
  16. 16.Is 35/45 in its simplest form? (a) No (b) Yes
  17. 17.What is the HCF of 14 and 21?
  18. 18.Is 3/4 in its simplest form? (a) No (b) Yes
  19. 19.Write 27/36 in its simplest form. =
  20. 20.Is 15/20 in its simplest form? (a) Yes (b) No
  21. 21.What is the HCF of 49 and 70?
  22. 22.Is 14/16 in its simplest form? (a) No (b) Yes
  23. 23.What is the HCF of 8 and 56?
  24. 24.What is the HCF of 25 and 30?
  25. 25.Write 9/27 in its simplest form. =
  26. 26.Is 42/60 in its simplest form? (a) Yes (b) No
  27. 27.Write 6/21 in its simplest form. =
  28. 28.Write 12/16 in its simplest form. =
  29. 29.Write 12/14 in its simplest form. =
  30. 30.Is 2/9 in its simplest form? (a) Yes (b) No
  31. 31.What is the HCF of 18 and 20?
  32. 32.What is the HCF of 9 and 63?
  33. 33.What is the HCF of 7 and 14?
  34. 34.Write 8/56 in its simplest form. =
  35. 35.Write 40/56 in its simplest form. =
  36. 36.Write 7/70 in its simplest form. =
  37. 37.Write 64/72 in its simplest form. =
  38. 38.Write 9/36 in its simplest form. =
  39. 39.What is the HCF of 27 and 45?
  40. 40.Is 8/12 in its simplest form? (a) Yes (b) No

Answer key

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

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