← Simplest form of a fraction lesson New set →

Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 276 · 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 45 and 81?
  2. 2.What is the HCF of 48 and 54?
  3. 3.What is the HCF of 42 and 49?
  4. 4.What is the HCF of 12 and 30?
  5. 5.Is 10/15 in its simplest form? (a) Yes (b) No
  6. 6.Is 2/20 in its simplest form? (a) Yes (b) No
  7. 7.What is the HCF of 9 and 72?
  8. 8.What is the HCF of 14 and 21?
  9. 9.Is 28/36 in its simplest form? (a) No (b) Yes
  10. 10.Write 3/6 in its simplest form. =
  11. 11.Is 6/18 in its simplest form? (a) No (b) Yes
  12. 12.What is the HCF of 21 and 35?
  13. 13.Is 15/35 in its simplest form? (a) Yes (b) No
  14. 14.Is 4/16 in its simplest form? (a) No (b) Yes
  15. 15.Is 5/7 in its simplest form? (a) No (b) Yes
  16. 16.What is the HCF of 5 and 20?
  17. 17.Is 8/28 in its simplest form? (a) No (b) Yes
  18. 18.Is 12/21 in its simplest form? (a) No (b) Yes
  19. 19.Is 9/10 in its simplest form? (a) No (b) Yes
  20. 20.Write 25/35 in its simplest form. =
  21. 21.Is 6/30 in its simplest form? (a) No (b) Yes
  22. 22.Is 5/50 in its simplest form? (a) No (b) Yes
  23. 23.Write 16/18 in its simplest form. =
  24. 24.Is 6/15 in its simplest form? (a) No (b) Yes
  25. 25.Write 18/42 in its simplest form. =
  26. 26.Is 5/8 in its simplest form? (a) No (b) Yes
  27. 27.Write 6/36 in its simplest form. =
  28. 28.Is 3/8 in its simplest form? (a) No (b) Yes
  29. 29.What is the HCF of 6 and 12?
  30. 30.Write 18/45 in its simplest form. =
  31. 31.Is 10/35 in its simplest form? (a) No (b) Yes
  32. 32.Is 1/7 in its simplest form? (a) Yes (b) No
  33. 33.What is the HCF of 12 and 27?
  34. 34.Write 28/36 in its simplest form. =
  35. 35.What is the HCF of 9 and 45?
  36. 36.Write 6/8 in its simplest form. =
  37. 37.Is 10/16 in its simplest form? (a) Yes (b) No
  38. 38.Is 35/45 in its simplest form? (a) Yes (b) No
  39. 39.Is 6/20 in its simplest form? (a) Yes (b) No
  40. 40.Is 4/10 in its simplest form? (a) Yes (b) No

Answer key

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

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