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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 795 · 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 2 and 8?
  2. 2.What is the HCF of 35 and 40?
  3. 3.Is 12/28 in its simplest form? (a) No (b) Yes
  4. 4.Write 24/30 in its simplest form. =
  5. 5.Write 9/15 in its simplest form. =
  6. 6.What is the HCF of 12 and 21?
  7. 7.Is 5/7 in its simplest form? (a) No (b) Yes
  8. 8.Is 1/4 in its simplest form? (a) Yes (b) No
  9. 9.What is the HCF of 15 and 40?
  10. 10.Write 27/45 in its simplest form. =
  11. 11.Is 24/27 in its simplest form? (a) No (b) Yes
  12. 12.Is 1/10 in its simplest form? (a) Yes (b) No
  13. 13.Is 7/8 in its simplest form? (a) Yes (b) No
  14. 14.Is 1/6 in its simplest form? (a) No (b) Yes
  15. 15.Write 16/56 in its simplest form. =
  16. 16.Write 35/50 in its simplest form. =
  17. 17.Is 30/54 in its simplest form? (a) Yes (b) No
  18. 18.Write 2/6 in its simplest form. =
  19. 19.Write 9/54 in its simplest form. =
  20. 20.Write 18/60 in its simplest form. =
  21. 21.Is 18/42 in its simplest form? (a) Yes (b) No
  22. 22.Is 15/20 in its simplest form? (a) Yes (b) No
  23. 23.Write 30/48 in its simplest form. =
  24. 24.Write 24/54 in its simplest form. =
  25. 25.What is the HCF of 48 and 54?
  26. 26.What is the HCF of 42 and 48?
  27. 27.What is the HCF of 6 and 9?
  28. 28.Write 32/56 in its simplest form. =
  29. 29.What is the HCF of 10 and 16?
  30. 30.Write 63/90 in its simplest form. =
  31. 31.Write 3/6 in its simplest form. =
  32. 32.What is the HCF of 42 and 54?
  33. 33.What is the HCF of 6 and 21?
  34. 34.Write 42/60 in its simplest form. =
  35. 35.Is 2/14 in its simplest form? (a) No (b) Yes
  36. 36.Write 6/18 in its simplest form. =
  37. 37.Write 56/80 in its simplest form. =
  38. 38.Write 45/81 in its simplest form. =
  39. 39.Is 20/28 in its simplest form? (a) Yes (b) No
  40. 40.Is 6/30 in its simplest form? (a) No (b) Yes

Answer key

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

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