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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 774 · 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.What is the HCF of 6 and 24?
  2. 2.Write 18/27 in its simplest form. =
  3. 3.What is the HCF of 4 and 12?
  4. 4.What is the HCF of 12 and 27?
  5. 5.Is 6/7 in its simplest form? (a) No (b) Yes
  6. 6.What is the HCF of 16 and 28?
  7. 7.Is 2/20 in its simplest form? (a) No (b) Yes
  8. 8.Is 3/7 in its simplest form? (a) No (b) Yes
  9. 9.What is the HCF of 4 and 16?
  10. 10.Is 28/40 in its simplest form? (a) Yes (b) No
  11. 11.Write 5/20 in its simplest form. =
  12. 12.Is 5/6 in its simplest form? (a) Yes (b) No
  13. 13.Is 30/54 in its simplest form? (a) Yes (b) No
  14. 14.Write 9/21 in its simplest form. =
  15. 15.Write 8/48 in its simplest form. =
  16. 16.What is the HCF of 8 and 12?
  17. 17.Is 4/40 in its simplest form? (a) No (b) Yes
  18. 18.What is the HCF of 30 and 36?
  19. 19.Write 12/20 in its simplest form. =
  20. 20.Is 1/2 in its simplest form? (a) No (b) Yes
  21. 21.Write 12/16 in its simplest form. =
  22. 22.Is 12/40 in its simplest form? (a) No (b) Yes
  23. 23.What is the HCF of 20 and 28?
  24. 24.Write 5/10 in its simplest form. =
  25. 25.What is the HCF of 15 and 18?
  26. 26.Write 25/40 in its simplest form. =
  27. 27.Is 16/36 in its simplest form? (a) No (b) Yes
  28. 28.Write 21/35 in its simplest form. =
  29. 29.What is the HCF of 32 and 56?
  30. 30.Write 12/27 in its simplest form. =
  31. 31.Write 63/81 in its simplest form. =
  32. 32.What is the HCF of 10 and 14?
  33. 33.Is 3/27 in its simplest form? (a) No (b) Yes
  34. 34.Is 35/45 in its simplest form? (a) Yes (b) No
  35. 35.What is the HCF of 6 and 14?
  36. 36.What is the HCF of 42 and 48?
  37. 37.Write 10/25 in its simplest form. =
  38. 38.Write 35/45 in its simplest form. =
  39. 39.Is 4/5 in its simplest form? (a) Yes (b) No
  40. 40.Write 10/15 in its simplest form. =

Answer key

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

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