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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 530 · 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 6/8 in its simplest form? (a) Yes (b) No
  2. 2.Write 21/30 in its simplest form. =
  3. 3.What is the HCF of 12 and 21?
  4. 4.What is the HCF of 16 and 28?
  5. 5.What is the HCF of 28 and 40?
  6. 6.Write 25/45 in its simplest form. =
  7. 7.What is the HCF of 30 and 35?
  8. 8.Is 3/30 in its simplest form? (a) No (b) Yes
  9. 9.Write 14/35 in its simplest form. =
  10. 10.Write 12/18 in its simplest form. =
  11. 11.Write 15/40 in its simplest form. =
  12. 12.What is the HCF of 3 and 6?
  13. 13.Is 5/7 in its simplest form? (a) No (b) Yes
  14. 14.Write 18/27 in its simplest form. =
  15. 15.Write 30/48 in its simplest form. =
  16. 16.What is the HCF of 15 and 20?
  17. 17.What is the HCF of 8 and 20?
  18. 18.Is 7/8 in its simplest form? (a) No (b) Yes
  19. 19.What is the HCF of 14 and 35?
  20. 20.Is 2/20 in its simplest form? (a) No (b) Yes
  21. 21.What is the HCF of 32 and 72?
  22. 22.Is 4/32 in its simplest form? (a) Yes (b) No
  23. 23.Write 32/40 in its simplest form. =
  24. 24.Is 15/20 in its simplest form? (a) No (b) Yes
  25. 25.Write 6/24 in its simplest form. =
  26. 26.Write 7/14 in its simplest form. =
  27. 27.What is the HCF of 4 and 16?
  28. 28.Write 18/81 in its simplest form. =
  29. 29.What is the HCF of 9 and 12?
  30. 30.What is the HCF of 9 and 72?
  31. 31.Write 4/16 in its simplest form. =
  32. 32.Is 5/30 in its simplest form? (a) Yes (b) No
  33. 33.Write 18/20 in its simplest form. =
  34. 34.Is 9/15 in its simplest form? (a) Yes (b) No
  35. 35.Write 16/56 in its simplest form. =
  36. 36.What is the HCF of 9 and 27?
  37. 37.What is the HCF of 18 and 24?
  38. 38.Write 14/63 in its simplest form. =
  39. 39.Write 36/81 in its simplest form. =
  40. 40.Write 24/40 in its simplest form. =

Answer key

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

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