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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 504 · 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 45/50 in its simplest form. =
  2. 2.What is the HCF of 6 and 16?
  3. 3.What is the HCF of 40 and 64?
  4. 4.What is the HCF of 8 and 20?
  5. 5.What is the HCF of 6 and 14?
  6. 6.Is 4/5 in its simplest form? (a) Yes (b) No
  7. 7.Is 1/4 in its simplest form? (a) No (b) Yes
  8. 8.What is the HCF of 15 and 24?
  9. 9.Is 45/50 in its simplest form? (a) No (b) Yes
  10. 10.What is the HCF of 48 and 56?
  11. 11.Is 7/10 in its simplest form? (a) Yes (b) No
  12. 12.Write 24/30 in its simplest form. =
  13. 13.Is 6/30 in its simplest form? (a) No (b) Yes
  14. 14.What is the HCF of 7 and 14?
  15. 15.Write 32/40 in its simplest form. =
  16. 16.What is the HCF of 24 and 28?
  17. 17.Is 6/10 in its simplest form? (a) No (b) Yes
  18. 18.What is the HCF of 49 and 63?
  19. 19.Write 81/90 in its simplest form. =
  20. 20.Write 40/56 in its simplest form. =
  21. 21.Write 7/35 in its simplest form. =
  22. 22.What is the HCF of 18 and 20?
  23. 23.What is the HCF of 18 and 30?
  24. 24.Is 1/3 in its simplest form? (a) Yes (b) No
  25. 25.Write 15/21 in its simplest form. =
  26. 26.Is 6/14 in its simplest form? (a) No (b) Yes
  27. 27.What is the HCF of 10 and 14?
  28. 28.Is 1/2 in its simplest form? (a) Yes (b) No
  29. 29.Is 16/20 in its simplest form? (a) Yes (b) No
  30. 30.Write 12/27 in its simplest form. =
  31. 31.Write 14/21 in its simplest form. =
  32. 32.Write 21/35 in its simplest form. =
  33. 33.Write 6/10 in its simplest form. =
  34. 34.Write 8/36 in its simplest form. =
  35. 35.Write 5/25 in its simplest form. =
  36. 36.Is 10/25 in its simplest form? (a) No (b) Yes
  37. 37.Write 9/72 in its simplest form. =
  38. 38.Is 7/8 in its simplest form? (a) No (b) Yes
  39. 39.What is the HCF of 3 and 9?
  40. 40.Write 72/80 in its simplest form. =

Answer key

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

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