← Simplest form of a fraction lesson New set →

Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 328 · 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 18/27 in its simplest form. =
  2. 2.Is 4/9 in its simplest form? (a) No (b) Yes
  3. 3.Write 9/18 in its simplest form. =
  4. 4.Is 5/30 in its simplest form? (a) Yes (b) No
  5. 5.Write 18/30 in its simplest form. =
  6. 6.Write 4/20 in its simplest form. =
  7. 7.Write 35/40 in its simplest form. =
  8. 8.Is 12/32 in its simplest form? (a) No (b) Yes
  9. 9.Is 54/60 in its simplest form? (a) Yes (b) No
  10. 10.Write 9/21 in its simplest form. =
  11. 11.What is the HCF of 7 and 70?
  12. 12.Write 7/70 in its simplest form. =
  13. 13.Is 45/50 in its simplest form? (a) No (b) Yes
  14. 14.Write 2/12 in its simplest form. =
  15. 15.Write 6/30 in its simplest form. =
  16. 16.Write 40/56 in its simplest form. =
  17. 17.What is the HCF of 63 and 90?
  18. 18.Is 12/54 in its simplest form? (a) Yes (b) No
  19. 19.What is the HCF of 4 and 10?
  20. 20.Write 15/21 in its simplest form. =
  21. 21.Write 28/49 in its simplest form. =
  22. 22.Is 9/10 in its simplest form? (a) No (b) Yes
  23. 23.Write 30/54 in its simplest form. =
  24. 24.Write 9/36 in its simplest form. =
  25. 25.What is the HCF of 40 and 45?
  26. 26.What is the HCF of 30 and 48?
  27. 27.Is 7/9 in its simplest form? (a) No (b) Yes
  28. 28.Is 3/5 in its simplest form? (a) No (b) Yes
  29. 29.Write 15/18 in its simplest form. =
  30. 30.Is 14/16 in its simplest form? (a) No (b) Yes
  31. 31.What is the HCF of 24 and 42?
  32. 32.What is the HCF of 64 and 72?
  33. 33.Is 9/21 in its simplest form? (a) No (b) Yes
  34. 34.Write 8/16 in its simplest form. =
  35. 35.Write 4/28 in its simplest form. =
  36. 36.Write 10/18 in its simplest form. =
  37. 37.Is 20/32 in its simplest form? (a) No (b) Yes
  38. 38.Write 9/81 in its simplest form. =
  39. 39.What is the HCF of 35 and 63?
  40. 40.What is the HCF of 18 and 81?

Answer key

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

Free fractions lessons, practice and worksheets at talentjr.in/fractions-for-kids