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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 374 · 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 7/10 in its simplest form? (a) No (b) Yes
  2. 2.What is the HCF of 4 and 16?
  3. 3.What is the HCF of 4 and 14?
  4. 4.Write 12/18 in its simplest form. =
  5. 5.Write 27/30 in its simplest form. =
  6. 6.What is the HCF of 9 and 90?
  7. 7.What is the HCF of 9 and 30?
  8. 8.Write 8/14 in its simplest form. =
  9. 9.What is the HCF of 9 and 15?
  10. 10.Write 10/25 in its simplest form. =
  11. 11.Write 3/6 in its simplest form. =
  12. 12.Is 20/36 in its simplest form? (a) No (b) Yes
  13. 13.Is 18/20 in its simplest form? (a) Yes (b) No
  14. 14.Is 15/24 in its simplest form? (a) Yes (b) No
  15. 15.What is the HCF of 7 and 42?
  16. 16.Is 4/16 in its simplest form? (a) No (b) Yes
  17. 17.Write 16/20 in its simplest form. =
  18. 18.Write 9/45 in its simplest form. =
  19. 19.Write 25/30 in its simplest form. =
  20. 20.What is the HCF of 8 and 16?
  21. 21.Is 16/18 in its simplest form? (a) Yes (b) No
  22. 22.What is the HCF of 8 and 24?
  23. 23.Write 7/42 in its simplest form. =
  24. 24.What is the HCF of 12 and 28?
  25. 25.What is the HCF of 24 and 27?
  26. 26.Is 6/7 in its simplest form? (a) No (b) Yes
  27. 27.Is 35/45 in its simplest form? (a) Yes (b) No
  28. 28.Is 3/10 in its simplest form? (a) No (b) Yes
  29. 29.Write 8/28 in its simplest form. =
  30. 30.Write 24/54 in its simplest form. =
  31. 31.Write 8/12 in its simplest form. =
  32. 32.What is the HCF of 42 and 48?
  33. 33.Write 24/40 in its simplest form. =
  34. 34.Write 24/56 in its simplest form. =
  35. 35.Is 12/21 in its simplest form? (a) Yes (b) No
  36. 36.What is the HCF of 5 and 35?
  37. 37.Write 25/35 in its simplest form. =
  38. 38.What is the HCF of 30 and 54?
  39. 39.Is 18/24 in its simplest form? (a) Yes (b) No
  40. 40.Write 6/18 in its simplest form. =

Answer key

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

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