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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 664 · 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 18/60 in its simplest form. =
  2. 2.Is 7/9 in its simplest form? (a) Yes (b) No
  3. 3.What is the HCF of 15 and 27?
  4. 4.Write 35/40 in its simplest form. =
  5. 5.Is 3/7 in its simplest form? (a) No (b) Yes
  6. 6.Is 21/30 in its simplest form? (a) No (b) Yes
  7. 7.Is 3/8 in its simplest form? (a) No (b) Yes
  8. 8.Write 7/21 in its simplest form. =
  9. 9.Is 2/5 in its simplest form? (a) No (b) Yes
  10. 10.What is the HCF of 3 and 30?
  11. 11.Is 15/40 in its simplest form? (a) No (b) Yes
  12. 12.Is 2/6 in its simplest form? (a) No (b) Yes
  13. 13.Write 21/27 in its simplest form. =
  14. 14.What is the HCF of 36 and 63?
  15. 15.What is the HCF of 6 and 10?
  16. 16.Write 9/15 in its simplest form. =
  17. 17.Is 21/24 in its simplest form? (a) No (b) Yes
  18. 18.What is the HCF of 2 and 12?
  19. 19.Is 4/5 in its simplest form? (a) Yes (b) No
  20. 20.Is 2/16 in its simplest form? (a) No (b) Yes
  21. 21.Write 7/56 in its simplest form. =
  22. 22.Is 7/10 in its simplest form? (a) No (b) Yes
  23. 23.Write 10/12 in its simplest form. =
  24. 24.Write 54/63 in its simplest form. =
  25. 25.What is the HCF of 40 and 72?
  26. 26.Is 2/18 in its simplest form? (a) Yes (b) No
  27. 27.Write 8/80 in its simplest form. =
  28. 28.Is 6/16 in its simplest form? (a) Yes (b) No
  29. 29.Is 6/7 in its simplest form? (a) No (b) Yes
  30. 30.What is the HCF of 8 and 48?
  31. 31.What is the HCF of 21 and 56?
  32. 32.Write 6/30 in its simplest form. =
  33. 33.What is the HCF of 7 and 28?
  34. 34.What is the HCF of 9 and 63?
  35. 35.What is the HCF of 2 and 10?
  36. 36.Write 5/40 in its simplest form. =
  37. 37.What is the HCF of 24 and 27?
  38. 38.What is the HCF of 6 and 12?
  39. 39.Write 2/10 in its simplest form. =
  40. 40.Write 2/4 in its simplest form. =

Answer key

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

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