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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 61 · 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 28/40 in its simplest form. =
  2. 2.What is the HCF of 16 and 36?
  3. 3.What is the HCF of 7 and 56?
  4. 4.Write 48/56 in its simplest form. =
  5. 5.Is 2/5 in its simplest form? (a) No (b) Yes
  6. 6.What is the HCF of 15 and 40?
  7. 7.Is 42/48 in its simplest form? (a) Yes (b) No
  8. 8.Is 3/5 in its simplest form? (a) No (b) Yes
  9. 9.Is 4/32 in its simplest form? (a) No (b) Yes
  10. 10.What is the HCF of 25 and 40?
  11. 11.Write 35/50 in its simplest form. =
  12. 12.What is the HCF of 8 and 64?
  13. 13.Is 1/3 in its simplest form? (a) No (b) Yes
  14. 14.Write 20/24 in its simplest form. =
  15. 15.Is 10/18 in its simplest form? (a) No (b) Yes
  16. 16.What is the HCF of 2 and 12?
  17. 17.Write 10/14 in its simplest form. =
  18. 18.What is the HCF of 48 and 54?
  19. 19.Is 10/25 in its simplest form? (a) Yes (b) No
  20. 20.Is 28/40 in its simplest form? (a) No (b) Yes
  21. 21.Write 5/30 in its simplest form. =
  22. 22.Write 10/45 in its simplest form. =
  23. 23.Write 3/30 in its simplest form. =
  24. 24.Is 16/18 in its simplest form? (a) No (b) Yes
  25. 25.Write 15/27 in its simplest form. =
  26. 26.What is the HCF of 36 and 45?
  27. 27.What is the HCF of 30 and 36?
  28. 28.What is the HCF of 2 and 8?
  29. 29.Is 8/36 in its simplest form? (a) Yes (b) No
  30. 30.Is 3/7 in its simplest form? (a) No (b) Yes
  31. 31.Is 8/18 in its simplest form? (a) No (b) Yes
  32. 32.What is the HCF of 7 and 35?
  33. 33.What is the HCF of 21 and 24?
  34. 34.Is 4/16 in its simplest form? (a) Yes (b) No
  35. 35.Is 3/4 in its simplest form? (a) No (b) Yes
  36. 36.What is the HCF of 3 and 15?
  37. 37.Write 4/8 in its simplest form. =
  38. 38.What is the HCF of 14 and 21?
  39. 39.What is the HCF of 12 and 32?
  40. 40.Is 1/5 in its simplest form? (a) No (b) Yes

Answer key

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

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