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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 799 · 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.Write 5/30 in its simplest form. =
  2. 2.Is 24/42 in its simplest form? (a) No (b) Yes
  3. 3.Write 7/70 in its simplest form. =
  4. 4.Write 21/24 in its simplest form. =
  5. 5.Write 8/16 in its simplest form. =
  6. 6.Is 12/15 in its simplest form? (a) No (b) Yes
  7. 7.What is the HCF of 3 and 24?
  8. 8.Write 56/63 in its simplest form. =
  9. 9.Write 3/27 in its simplest form. =
  10. 10.What is the HCF of 18 and 24?
  11. 11.What is the HCF of 18 and 63?
  12. 12.What is the HCF of 12 and 21?
  13. 13.Write 54/63 in its simplest form. =
  14. 14.Write 21/49 in its simplest form. =
  15. 15.Write 3/24 in its simplest form. =
  16. 16.What is the HCF of 4 and 6?
  17. 17.What is the HCF of 12 and 32?
  18. 18.What is the HCF of 7 and 56?
  19. 19.Is 16/28 in its simplest form? (a) Yes (b) No
  20. 20.What is the HCF of 24 and 56?
  21. 21.Is 12/30 in its simplest form? (a) Yes (b) No
  22. 22.Write 8/18 in its simplest form. =
  23. 23.Is 3/8 in its simplest form? (a) No (b) Yes
  24. 24.What is the HCF of 16 and 20?
  25. 25.What is the HCF of 3 and 27?
  26. 26.Write 28/32 in its simplest form. =
  27. 27.Is 5/15 in its simplest form? (a) No (b) Yes
  28. 28.Write 6/10 in its simplest form. =
  29. 29.Write 25/45 in its simplest form. =
  30. 30.What is the HCF of 15 and 50?
  31. 31.What is the HCF of 9 and 54?
  32. 32.Is 10/45 in its simplest form? (a) No (b) Yes
  33. 33.Is 4/18 in its simplest form? (a) Yes (b) No
  34. 34.Is 3/4 in its simplest form? (a) No (b) Yes
  35. 35.Is 1/2 in its simplest form? (a) Yes (b) No
  36. 36.What is the HCF of 30 and 42?
  37. 37.Is 3/10 in its simplest form? (a) No (b) Yes
  38. 38.Write 20/32 in its simplest form. =
  39. 39.Is 10/15 in its simplest form? (a) No (b) Yes
  40. 40.Write 18/30 in its simplest form. =

Answer key

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

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