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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 582 · 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.What is the HCF of 6 and 30?
  2. 2.Is 4/5 in its simplest form? (a) No (b) Yes
  3. 3.Write 24/64 in its simplest form. =
  4. 4.Is 2/3 in its simplest form? (a) No (b) Yes
  5. 5.What is the HCF of 6 and 36?
  6. 6.Is 20/32 in its simplest form? (a) No (b) Yes
  7. 7.What is the HCF of 20 and 45?
  8. 8.Is 6/42 in its simplest form? (a) Yes (b) No
  9. 9.Is 4/10 in its simplest form? (a) Yes (b) No
  10. 10.Write 40/48 in its simplest form. =
  11. 11.Write 18/20 in its simplest form. =
  12. 12.Is 6/18 in its simplest form? (a) Yes (b) No
  13. 13.Is 1/4 in its simplest form? (a) No (b) Yes
  14. 14.Is 9/21 in its simplest form? (a) No (b) Yes
  15. 15.What is the HCF of 3 and 21?
  16. 16.What is the HCF of 7 and 21?
  17. 17.Write 9/12 in its simplest form. =
  18. 18.Write 15/35 in its simplest form. =
  19. 19.Write 10/16 in its simplest form. =
  20. 20.Write 18/45 in its simplest form. =
  21. 21.Write 16/28 in its simplest form. =
  22. 22.What is the HCF of 8 and 20?
  23. 23.Is 2/9 in its simplest form? (a) No (b) Yes
  24. 24.What is the HCF of 7 and 63?
  25. 25.Write 6/12 in its simplest form. =
  26. 26.Write 24/28 in its simplest form. =
  27. 27.Write 27/36 in its simplest form. =
  28. 28.Is 8/9 in its simplest form? (a) Yes (b) No
  29. 29.What is the HCF of 30 and 42?
  30. 30.Is 1/6 in its simplest form? (a) Yes (b) No
  31. 31.Write 6/10 in its simplest form. =
  32. 32.Is 4/7 in its simplest form? (a) No (b) Yes
  33. 33.Write 45/54 in its simplest form. =
  34. 34.Write 15/25 in its simplest form. =
  35. 35.Is 6/7 in its simplest form? (a) No (b) Yes
  36. 36.Write 10/14 in its simplest form. =
  37. 37.Write 45/72 in its simplest form. =
  38. 38.Write 15/40 in its simplest form. =
  39. 39.Write 27/30 in its simplest form. =
  40. 40.What is the HCF of 12 and 40?

Answer key

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

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