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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 762 · 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 56 and 72?
  2. 2.Write 49/70 in its simplest form. =
  3. 3.What is the HCF of 5 and 15?
  4. 4.Write 24/40 in its simplest form. =
  5. 5.What is the HCF of 4 and 10?
  6. 6.Write 30/36 in its simplest form. =
  7. 7.What is the HCF of 16 and 20?
  8. 8.Write 40/45 in its simplest form. =
  9. 9.Is 4/28 in its simplest form? (a) Yes (b) No
  10. 10.What is the HCF of 24 and 40?
  11. 11.Write 18/48 in its simplest form. =
  12. 12.Is 3/21 in its simplest form? (a) No (b) Yes
  13. 13.Write 12/40 in its simplest form. =
  14. 14.Is 6/54 in its simplest form? (a) No (b) Yes
  15. 15.Is 24/30 in its simplest form? (a) Yes (b) No
  16. 16.Is 3/5 in its simplest form? (a) Yes (b) No
  17. 17.What is the HCF of 18 and 27?
  18. 18.What is the HCF of 12 and 27?
  19. 19.Write 4/18 in its simplest form. =
  20. 20.Write 25/40 in its simplest form. =
  21. 21.Write 28/40 in its simplest form. =
  22. 22.Is 4/5 in its simplest form? (a) Yes (b) No
  23. 23.Is 4/9 in its simplest form? (a) Yes (b) No
  24. 24.Is 9/30 in its simplest form? (a) No (b) Yes
  25. 25.Write 10/18 in its simplest form. =
  26. 26.What is the HCF of 64 and 72?
  27. 27.Is 28/40 in its simplest form? (a) No (b) Yes
  28. 28.What is the HCF of 18 and 30?
  29. 29.Write 10/12 in its simplest form. =
  30. 30.Write 12/14 in its simplest form. =
  31. 31.What is the HCF of 15 and 27?
  32. 32.Write 5/10 in its simplest form. =
  33. 33.Is 4/8 in its simplest form? (a) No (b) Yes
  34. 34.Is 18/30 in its simplest form? (a) Yes (b) No
  35. 35.Is 14/16 in its simplest form? (a) Yes (b) No
  36. 36.What is the HCF of 30 and 35?
  37. 37.What is the HCF of 9 and 90?
  38. 38.Write 7/14 in its simplest form. =
  39. 39.Write 18/27 in its simplest form. =
  40. 40.Write 24/56 in its simplest form. =

Answer key

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

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