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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 7 · 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 6/14 in its simplest form? (a) No (b) Yes
  2. 2.What is the HCF of 18 and 27?
  3. 3.Write 8/16 in its simplest form. =
  4. 4.Is 4/14 in its simplest form? (a) Yes (b) No
  5. 5.Write 4/12 in its simplest form. =
  6. 6.Is 2/9 in its simplest form? (a) No (b) Yes
  7. 7.What is the HCF of 9 and 27?
  8. 8.Is 5/9 in its simplest form? (a) No (b) Yes
  9. 9.What is the HCF of 49 and 63?
  10. 10.Is 1/7 in its simplest form? (a) No (b) Yes
  11. 11.What is the HCF of 9 and 30?
  12. 12.What is the HCF of 20 and 24?
  13. 13.What is the HCF of 12 and 40?
  14. 14.What is the HCF of 8 and 20?
  15. 15.Is 8/9 in its simplest form? (a) No (b) Yes
  16. 16.What is the HCF of 16 and 36?
  17. 17.Write 6/14 in its simplest form. =
  18. 18.Write 45/63 in its simplest form. =
  19. 19.What is the HCF of 35 and 63?
  20. 20.Write 56/63 in its simplest form. =
  21. 21.What is the HCF of 18 and 30?
  22. 22.Is 4/7 in its simplest form? (a) Yes (b) No
  23. 23.Is 7/10 in its simplest form? (a) No (b) Yes
  24. 24.Write 25/40 in its simplest form. =
  25. 25.Write 21/70 in its simplest form. =
  26. 26.Is 14/20 in its simplest form? (a) No (b) Yes
  27. 27.What is the HCF of 63 and 72?
  28. 28.Is 20/28 in its simplest form? (a) Yes (b) No
  29. 29.What is the HCF of 10 and 14?
  30. 30.What is the HCF of 5 and 45?
  31. 31.Is 2/6 in its simplest form? (a) No (b) Yes
  32. 32.Write 8/72 in its simplest form. =
  33. 33.Is 3/4 in its simplest form? (a) Yes (b) No
  34. 34.What is the HCF of 10 and 45?
  35. 35.Is 1/5 in its simplest form? (a) No (b) Yes
  36. 36.Write 25/35 in its simplest form. =
  37. 37.Write 9/15 in its simplest form. =
  38. 38.Is 6/20 in its simplest form? (a) Yes (b) No
  39. 39.Is 6/24 in its simplest form? (a) Yes (b) No
  40. 40.What is the HCF of 12 and 27?

Answer key

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

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