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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 629 · 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 15 and 24?
  2. 2.Write 8/64 in its simplest form. =
  3. 3.What is the HCF of 7 and 21?
  4. 4.What is the HCF of 24 and 27?
  5. 5.Is 3/8 in its simplest form? (a) No (b) Yes
  6. 6.What is the HCF of 4 and 36?
  7. 7.Write 28/40 in its simplest form. =
  8. 8.Write 15/50 in its simplest form. =
  9. 9.Is 35/40 in its simplest form? (a) Yes (b) No
  10. 10.Write 20/45 in its simplest form. =
  11. 11.Write 3/18 in its simplest form. =
  12. 12.Is 30/48 in its simplest form? (a) Yes (b) No
  13. 13.Write 18/45 in its simplest form. =
  14. 14.Is 8/28 in its simplest form? (a) No (b) Yes
  15. 15.Write 4/12 in its simplest form. =
  16. 16.What is the HCF of 5 and 40?
  17. 17.Write 40/72 in its simplest form. =
  18. 18.Write 24/30 in its simplest form. =
  19. 19.Is 2/3 in its simplest form? (a) Yes (b) No
  20. 20.What is the HCF of 14 and 18?
  21. 21.What is the HCF of 15 and 35?
  22. 22.Write 20/32 in its simplest form. =
  23. 23.Write 3/27 in its simplest form. =
  24. 24.What is the HCF of 35 and 42?
  25. 25.What is the HCF of 36 and 81?
  26. 26.Is 1/2 in its simplest form? (a) No (b) Yes
  27. 27.Write 28/49 in its simplest form. =
  28. 28.Write 20/28 in its simplest form. =
  29. 29.What is the HCF of 6 and 24?
  30. 30.Write 2/10 in its simplest form. =
  31. 31.Write 9/30 in its simplest form. =
  32. 32.Is 1/6 in its simplest form? (a) No (b) Yes
  33. 33.Write 18/21 in its simplest form. =
  34. 34.Write 16/20 in its simplest form. =
  35. 35.Is 3/9 in its simplest form? (a) No (b) Yes
  36. 36.What is the HCF of 3 and 30?
  37. 37.Write 16/56 in its simplest form. =
  38. 38.Write 8/32 in its simplest form. =
  39. 39.Is 1/4 in its simplest form? (a) No (b) Yes
  40. 40.What is the HCF of 21 and 30?

Answer key

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

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