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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 772 · 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 7 and 63?
  2. 2.Write 18/20 in its simplest form. =
  3. 3.Write 8/16 in its simplest form. =
  4. 4.Is 8/14 in its simplest form? (a) No (b) Yes
  5. 5.Write 21/70 in its simplest form. =
  6. 6.Write 20/24 in its simplest form. =
  7. 7.Is 2/3 in its simplest form? (a) Yes (b) No
  8. 8.What is the HCF of 7 and 49?
  9. 9.What is the HCF of 9 and 72?
  10. 10.What is the HCF of 2 and 20?
  11. 11.What is the HCF of 16 and 40?
  12. 12.Is 3/5 in its simplest form? (a) Yes (b) No
  13. 13.Write 2/20 in its simplest form. =
  14. 14.What is the HCF of 63 and 70?
  15. 15.Is 4/6 in its simplest form? (a) No (b) Yes
  16. 16.Write 8/40 in its simplest form. =
  17. 17.Write 24/27 in its simplest form. =
  18. 18.Write 6/20 in its simplest form. =
  19. 19.Is 20/25 in its simplest form? (a) No (b) Yes
  20. 20.Write 6/54 in its simplest form. =
  21. 21.Write 7/14 in its simplest form. =
  22. 22.Write 63/70 in its simplest form. =
  23. 23.Write 72/80 in its simplest form. =
  24. 24.Write 40/48 in its simplest form. =
  25. 25.Is 12/30 in its simplest form? (a) No (b) Yes
  26. 26.Write 2/18 in its simplest form. =
  27. 27.Is 14/16 in its simplest form? (a) No (b) Yes
  28. 28.What is the HCF of 8 and 24?
  29. 29.What is the HCF of 16 and 72?
  30. 30.Write 12/20 in its simplest form. =
  31. 31.Write 3/21 in its simplest form. =
  32. 32.Write 64/72 in its simplest form. =
  33. 33.Is 5/8 in its simplest form? (a) No (b) Yes
  34. 34.Is 1/7 in its simplest form? (a) No (b) Yes
  35. 35.Is 1/8 in its simplest form? (a) Yes (b) No
  36. 36.What is the HCF of 21 and 28?
  37. 37.What is the HCF of 15 and 25?
  38. 38.What is the HCF of 27 and 30?
  39. 39.What is the HCF of 42 and 60?
  40. 40.Write 21/56 in its simplest form. =

Answer key

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

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