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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 2 · 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 4/5 in its simplest form? (a) No (b) Yes
  2. 2.What is the HCF of 7 and 28?
  3. 3.Write 10/14 in its simplest form. =
  4. 4.What is the HCF of 21 and 35?
  5. 5.Write 48/54 in its simplest form. =
  6. 6.Write 6/27 in its simplest form. =
  7. 7.Is 5/8 in its simplest form? (a) Yes (b) No
  8. 8.Is 2/3 in its simplest form? (a) Yes (b) No
  9. 9.Write 32/40 in its simplest form. =
  10. 10.Is 15/27 in its simplest form? (a) No (b) Yes
  11. 11.Is 6/12 in its simplest form? (a) No (b) Yes
  12. 12.Write 2/12 in its simplest form. =
  13. 13.Is 36/40 in its simplest form? (a) Yes (b) No
  14. 14.Is 21/24 in its simplest form? (a) Yes (b) No
  15. 15.Write 16/28 in its simplest form. =
  16. 16.What is the HCF of 6 and 8?
  17. 17.Is 1/2 in its simplest form? (a) Yes (b) No
  18. 18.Is 6/24 in its simplest form? (a) Yes (b) No
  19. 19.Write 12/40 in its simplest form. =
  20. 20.Is 3/9 in its simplest form? (a) Yes (b) No
  21. 21.Is 25/40 in its simplest form? (a) No (b) Yes
  22. 22.Is 5/7 in its simplest form? (a) No (b) Yes
  23. 23.Is 5/9 in its simplest form? (a) Yes (b) No
  24. 24.Write 4/18 in its simplest form. =
  25. 25.Write 6/8 in its simplest form. =
  26. 26.Write 30/35 in its simplest form. =
  27. 27.Is 15/20 in its simplest form? (a) No (b) Yes
  28. 28.Is 1/10 in its simplest form? (a) Yes (b) No
  29. 29.Write 5/40 in its simplest form. =
  30. 30.Is 3/12 in its simplest form? (a) No (b) Yes
  31. 31.What is the HCF of 12 and 21?
  32. 32.Write 8/14 in its simplest form. =
  33. 33.Write 6/16 in its simplest form. =
  34. 34.What is the HCF of 18 and 27?
  35. 35.Is 12/18 in its simplest form? (a) Yes (b) No
  36. 36.Write 35/40 in its simplest form. =
  37. 37.Write 12/30 in its simplest form. =
  38. 38.Write 7/70 in its simplest form. =
  39. 39.What is the HCF of 2 and 4?
  40. 40.Is 4/9 in its simplest form? (a) Yes (b) No

Answer key

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

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