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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 606 · 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 4/9 in its simplest form? (a) No (b) Yes
  2. 2.What is the HCF of 25 and 35?
  3. 3.Is 10/25 in its simplest form? (a) No (b) Yes
  4. 4.Write 45/72 in its simplest form. =
  5. 5.Write 2/8 in its simplest form. =
  6. 6.What is the HCF of 8 and 32?
  7. 7.Write 15/40 in its simplest form. =
  8. 8.What is the HCF of 45 and 50?
  9. 9.Is 2/9 in its simplest form? (a) No (b) Yes
  10. 10.Is 2/4 in its simplest form? (a) No (b) Yes
  11. 11.What is the HCF of 24 and 32?
  12. 12.What is the HCF of 9 and 21?
  13. 13.Is 1/2 in its simplest form? (a) Yes (b) No
  14. 14.What is the HCF of 3 and 15?
  15. 15.Write 42/60 in its simplest form. =
  16. 16.Is 6/7 in its simplest form? (a) No (b) Yes
  17. 17.Is 1/3 in its simplest form? (a) Yes (b) No
  18. 18.Write 5/10 in its simplest form. =
  19. 19.Is 4/7 in its simplest form? (a) No (b) Yes
  20. 20.What is the HCF of 21 and 35?
  21. 21.Write 3/27 in its simplest form. =
  22. 22.Write 63/81 in its simplest form. =
  23. 23.Is 3/7 in its simplest form? (a) No (b) Yes
  24. 24.What is the HCF of 3 and 9?
  25. 25.Write 32/56 in its simplest form. =
  26. 26.Is 3/10 in its simplest form? (a) Yes (b) No
  27. 27.What is the HCF of 14 and 20?
  28. 28.What is the HCF of 12 and 42?
  29. 29.Write 14/20 in its simplest form. =
  30. 30.What is the HCF of 25 and 45?
  31. 31.Write 4/24 in its simplest form. =
  32. 32.What is the HCF of 40 and 56?
  33. 33.Is 6/60 in its simplest form? (a) No (b) Yes
  34. 34.What is the HCF of 18 and 21?
  35. 35.What is the HCF of 4 and 12?
  36. 36.Write 18/27 in its simplest form. =
  37. 37.Write 2/6 in its simplest form. =
  38. 38.Is 25/45 in its simplest form? (a) Yes (b) No
  39. 39.Is 5/35 in its simplest form? (a) No (b) Yes
  40. 40.Write 36/81 in its simplest form. =

Answer key

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

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