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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 984 · 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 45/72 in its simplest form. =
  2. 2.Write 8/24 in its simplest form. =
  3. 3.Write 48/56 in its simplest form. =
  4. 4.What is the HCF of 4 and 12?
  5. 5.Write 10/14 in its simplest form. =
  6. 6.Is 10/18 in its simplest form? (a) Yes (b) No
  7. 7.Is 9/12 in its simplest form? (a) No (b) Yes
  8. 8.What is the HCF of 4 and 6?
  9. 9.What is the HCF of 6 and 16?
  10. 10.What is the HCF of 6 and 14?
  11. 11.Write 40/48 in its simplest form. =
  12. 12.Is 6/15 in its simplest form? (a) Yes (b) No
  13. 13.Is 3/7 in its simplest form? (a) Yes (b) No
  14. 14.What is the HCF of 24 and 80?
  15. 15.Write 12/18 in its simplest form. =
  16. 16.What is the HCF of 12 and 42?
  17. 17.What is the HCF of 63 and 90?
  18. 18.What is the HCF of 7 and 63?
  19. 19.Write 14/63 in its simplest form. =
  20. 20.Is 3/4 in its simplest form? (a) Yes (b) No
  21. 21.Write 16/20 in its simplest form. =
  22. 22.What is the HCF of 15 and 35?
  23. 23.Is 20/32 in its simplest form? (a) No (b) Yes
  24. 24.What is the HCF of 12 and 32?
  25. 25.Write 4/14 in its simplest form. =
  26. 26.What is the HCF of 8 and 48?
  27. 27.Write 2/20 in its simplest form. =
  28. 28.Write 18/48 in its simplest form. =
  29. 29.Is 5/45 in its simplest form? (a) No (b) Yes
  30. 30.What is the HCF of 16 and 24?
  31. 31.Is 7/9 in its simplest form? (a) No (b) Yes
  32. 32.Is 8/20 in its simplest form? (a) No (b) Yes
  33. 33.What is the HCF of 12 and 54?
  34. 34.Is 4/5 in its simplest form? (a) No (b) Yes
  35. 35.What is the HCF of 21 and 35?
  36. 36.What is the HCF of 12 and 14?
  37. 37.Is 6/54 in its simplest form? (a) Yes (b) No
  38. 38.Is 6/7 in its simplest form? (a) No (b) Yes
  39. 39.Is 3/27 in its simplest form? (a) No (b) Yes
  40. 40.Write 15/25 in its simplest form. =

Answer key

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

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