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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 535 · 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 9/24 in its simplest form. =
  2. 2.What is the HCF of 7 and 56?
  3. 3.Is 5/9 in its simplest form? (a) No (b) Yes
  4. 4.What is the HCF of 2 and 6?
  5. 5.Write 10/18 in its simplest form. =
  6. 6.Write 6/20 in its simplest form. =
  7. 7.Write 8/40 in its simplest form. =
  8. 8.What is the HCF of 20 and 25?
  9. 9.Is 3/9 in its simplest form? (a) No (b) Yes
  10. 10.What is the HCF of 3 and 24?
  11. 11.Write 32/72 in its simplest form. =
  12. 12.Is 3/27 in its simplest form? (a) No (b) Yes
  13. 13.What is the HCF of 25 and 30?
  14. 14.What is the HCF of 25 and 45?
  15. 15.Is 4/6 in its simplest form? (a) No (b) Yes
  16. 16.Write 16/72 in its simplest form. =
  17. 17.Write 5/30 in its simplest form. =
  18. 18.Write 8/48 in its simplest form. =
  19. 19.Is 4/5 in its simplest form? (a) Yes (b) No
  20. 20.Is 8/9 in its simplest form? (a) Yes (b) No
  21. 21.Write 30/35 in its simplest form. =
  22. 22.Write 4/24 in its simplest form. =
  23. 23.Is 14/18 in its simplest form? (a) No (b) Yes
  24. 24.Is 3/4 in its simplest form? (a) No (b) Yes
  25. 25.What is the HCF of 24 and 28?
  26. 26.Write 35/45 in its simplest form. =
  27. 27.Write 24/27 in its simplest form. =
  28. 28.Write 25/40 in its simplest form. =
  29. 29.What is the HCF of 25 and 40?
  30. 30.Is 4/20 in its simplest form? (a) No (b) Yes
  31. 31.Is 42/60 in its simplest form? (a) Yes (b) No
  32. 32.Write 7/21 in its simplest form. =
  33. 33.What is the HCF of 18 and 21?
  34. 34.Is 7/10 in its simplest form? (a) No (b) Yes
  35. 35.What is the HCF of 5 and 25?
  36. 36.Write 6/30 in its simplest form. =
  37. 37.Is 8/14 in its simplest form? (a) No (b) Yes
  38. 38.Is 1/5 in its simplest form? (a) No (b) Yes
  39. 39.Write 10/25 in its simplest form. =
  40. 40.Write 8/56 in its simplest form. =

Answer key

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

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