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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 778 · 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.Is 1/2 in its simplest form? (a) No (b) Yes
  2. 2.Write 28/63 in its simplest form. =
  3. 3.What is the HCF of 4 and 24?
  4. 4.What is the HCF of 5 and 25?
  5. 5.Write 6/16 in its simplest form. =
  6. 6.Is 10/45 in its simplest form? (a) No (b) Yes
  7. 7.Write 35/50 in its simplest form. =
  8. 8.What is the HCF of 6 and 27?
  9. 9.Write 36/45 in its simplest form. =
  10. 10.Write 30/35 in its simplest form. =
  11. 11.Write 16/24 in its simplest form. =
  12. 12.What is the HCF of 45 and 63?
  13. 13.What is the HCF of 14 and 21?
  14. 14.What is the HCF of 40 and 45?
  15. 15.Write 63/81 in its simplest form. =
  16. 16.Is 8/28 in its simplest form? (a) No (b) Yes
  17. 17.Is 18/21 in its simplest form? (a) No (b) Yes
  18. 18.Write 14/35 in its simplest form. =
  19. 19.Is 6/12 in its simplest form? (a) No (b) Yes
  20. 20.Is 4/9 in its simplest form? (a) No (b) Yes
  21. 21.Write 4/20 in its simplest form. =
  22. 22.Is 4/5 in its simplest form? (a) No (b) Yes
  23. 23.What is the HCF of 4 and 16?
  24. 24.Is 2/3 in its simplest form? (a) No (b) Yes
  25. 25.Write 14/20 in its simplest form. =
  26. 26.What is the HCF of 4 and 18?
  27. 27.Write 10/25 in its simplest form. =
  28. 28.Write 12/20 in its simplest form. =
  29. 29.Write 18/42 in its simplest form. =
  30. 30.Write 48/54 in its simplest form. =
  31. 31.Write 27/63 in its simplest form. =
  32. 32.What is the HCF of 24 and 28?
  33. 33.Write 35/49 in its simplest form. =
  34. 34.Write 8/14 in its simplest form. =
  35. 35.Write 5/35 in its simplest form. =
  36. 36.Write 6/9 in its simplest form. =
  37. 37.Write 36/40 in its simplest form. =
  38. 38.Is 6/7 in its simplest form? (a) Yes (b) No
  39. 39.What is the HCF of 16 and 40?
  40. 40.Write 6/30 in its simplest form. =

Answer key

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

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