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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 313 · 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 14/20 in its simplest form. =
  2. 2.What is the HCF of 5 and 45?
  3. 3.Write 8/14 in its simplest form. =
  4. 4.Is 15/20 in its simplest form? (a) No (b) Yes
  5. 5.What is the HCF of 18 and 21?
  6. 6.Write 7/42 in its simplest form. =
  7. 7.What is the HCF of 4 and 10?
  8. 8.What is the HCF of 12 and 21?
  9. 9.What is the HCF of 21 and 28?
  10. 10.Is 4/28 in its simplest form? (a) No (b) Yes
  11. 11.What is the HCF of 42 and 54?
  12. 12.Is 18/48 in its simplest form? (a) No (b) Yes
  13. 13.Is 7/10 in its simplest form? (a) No (b) Yes
  14. 14.What is the HCF of 2 and 4?
  15. 15.Is 8/10 in its simplest form? (a) No (b) Yes
  16. 16.Is 4/7 in its simplest form? (a) Yes (b) No
  17. 17.Write 6/27 in its simplest form. =
  18. 18.Write 5/35 in its simplest form. =
  19. 19.What is the HCF of 7 and 49?
  20. 20.Write 5/10 in its simplest form. =
  21. 21.Write 8/12 in its simplest form. =
  22. 22.What is the HCF of 15 and 21?
  23. 23.Write 10/35 in its simplest form. =
  24. 24.Is 16/36 in its simplest form? (a) No (b) Yes
  25. 25.Write 8/56 in its simplest form. =
  26. 26.Is 6/60 in its simplest form? (a) Yes (b) No
  27. 27.Write 6/21 in its simplest form. =
  28. 28.Write 48/54 in its simplest form. =
  29. 29.What is the HCF of 20 and 45?
  30. 30.Write 4/6 in its simplest form. =
  31. 31.What is the HCF of 8 and 32?
  32. 32.Write 3/21 in its simplest form. =
  33. 33.Is 3/8 in its simplest form? (a) Yes (b) No
  34. 34.Write 12/20 in its simplest form. =
  35. 35.Write 2/8 in its simplest form. =
  36. 36.Write 16/20 in its simplest form. =
  37. 37.What is the HCF of 10 and 35?
  38. 38.What is the HCF of 9 and 24?
  39. 39.What is the HCF of 9 and 63?
  40. 40.Is 9/10 in its simplest form? (a) No (b) Yes

Answer key

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

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