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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 704 · 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 12/16 in its simplest form. =
  2. 2.What is the HCF of 7 and 21?
  3. 3.Write 5/25 in its simplest form. =
  4. 4.What is the HCF of 4 and 20?
  5. 5.What is the HCF of 21 and 27?
  6. 6.What is the HCF of 18 and 20?
  7. 7.Is 8/10 in its simplest form? (a) No (b) Yes
  8. 8.What is the HCF of 4 and 10?
  9. 9.What is the HCF of 12 and 18?
  10. 10.Is 3/4 in its simplest form? (a) No (b) Yes
  11. 11.Write 24/40 in its simplest form. =
  12. 12.Write 4/18 in its simplest form. =
  13. 13.Write 21/35 in its simplest form. =
  14. 14.What is the HCF of 12 and 40?
  15. 15.Write 27/63 in its simplest form. =
  16. 16.Write 8/20 in its simplest form. =
  17. 17.What is the HCF of 3 and 27?
  18. 18.Write 21/30 in its simplest form. =
  19. 19.Is 5/9 in its simplest form? (a) Yes (b) No
  20. 20.Write 40/64 in its simplest form. =
  21. 21.What is the HCF of 6 and 30?
  22. 22.What is the HCF of 2 and 20?
  23. 23.What is the HCF of 12 and 14?
  24. 24.Write 6/12 in its simplest form. =
  25. 25.Write 25/40 in its simplest form. =
  26. 26.Is 6/10 in its simplest form? (a) No (b) Yes
  27. 27.What is the HCF of 6 and 42?
  28. 28.Write 8/12 in its simplest form. =
  29. 29.Write 10/25 in its simplest form. =
  30. 30.Is 3/7 in its simplest form? (a) Yes (b) No
  31. 31.What is the HCF of 9 and 21?
  32. 32.Write 45/72 in its simplest form. =
  33. 33.Is 9/10 in its simplest form? (a) No (b) Yes
  34. 34.Write 5/10 in its simplest form. =
  35. 35.Write 12/15 in its simplest form. =
  36. 36.Is 25/45 in its simplest form? (a) Yes (b) No
  37. 37.Write 3/24 in its simplest form. =
  38. 38.Write 48/56 in its simplest form. =
  39. 39.Write 27/72 in its simplest form. =
  40. 40.Write 16/20 in its simplest form. =

Answer key

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

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