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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 656 · 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 4/16 in its simplest form. =
  2. 2.Is 2/3 in its simplest form? (a) No (b) Yes
  3. 3.Write 5/45 in its simplest form. =
  4. 4.What is the HCF of 72 and 80?
  5. 5.What is the HCF of 15 and 24?
  6. 6.What is the HCF of 6 and 48?
  7. 7.Is 5/7 in its simplest form? (a) Yes (b) No
  8. 8.Write 24/40 in its simplest form. =
  9. 9.What is the HCF of 15 and 25?
  10. 10.What is the HCF of 4 and 6?
  11. 11.Is 5/20 in its simplest form? (a) No (b) Yes
  12. 12.What is the HCF of 4 and 14?
  13. 13.Is 16/18 in its simplest form? (a) No (b) Yes
  14. 14.Write 21/56 in its simplest form. =
  15. 15.What is the HCF of 36 and 45?
  16. 16.What is the HCF of 8 and 40?
  17. 17.Write 9/30 in its simplest form. =
  18. 18.Write 28/36 in its simplest form. =
  19. 19.Is 3/4 in its simplest form? (a) No (b) Yes
  20. 20.Write 4/12 in its simplest form. =
  21. 21.What is the HCF of 7 and 28?
  22. 22.Write 2/14 in its simplest form. =
  23. 23.Write 3/30 in its simplest form. =
  24. 24.Is 20/25 in its simplest form? (a) No (b) Yes
  25. 25.Is 3/18 in its simplest form? (a) Yes (b) No
  26. 26.Is 10/18 in its simplest form? (a) No (b) Yes
  27. 27.What is the HCF of 7 and 35?
  28. 28.What is the HCF of 40 and 48?
  29. 29.What is the HCF of 12 and 18?
  30. 30.Is 1/5 in its simplest form? (a) Yes (b) No
  31. 31.Is 12/18 in its simplest form? (a) No (b) Yes
  32. 32.Write 7/49 in its simplest form. =
  33. 33.What is the HCF of 5 and 45?
  34. 34.Write 12/27 in its simplest form. =
  35. 35.What is the HCF of 15 and 27?
  36. 36.Is 24/30 in its simplest form? (a) Yes (b) No
  37. 37.Write 35/45 in its simplest form. =
  38. 38.What is the HCF of 28 and 35?
  39. 39.Write 9/90 in its simplest form. =
  40. 40.Is 5/8 in its simplest form? (a) No (b) Yes

Answer key

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

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