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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 310 · 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 8/9 in its simplest form? (a) No (b) Yes
  2. 2.What is the HCF of 12 and 14?
  3. 3.Write 8/48 in its simplest form. =
  4. 4.Write 7/70 in its simplest form. =
  5. 5.Write 6/24 in its simplest form. =
  6. 6.Write 6/16 in its simplest form. =
  7. 7.Is 1/5 in its simplest form? (a) No (b) Yes
  8. 8.Write 6/30 in its simplest form. =
  9. 9.What is the HCF of 7 and 63?
  10. 10.Is 7/8 in its simplest form? (a) Yes (b) No
  11. 11.Write 10/16 in its simplest form. =
  12. 12.Is 1/7 in its simplest form? (a) Yes (b) No
  13. 13.What is the HCF of 14 and 63?
  14. 14.Write 40/48 in its simplest form. =
  15. 15.Write 24/54 in its simplest form. =
  16. 16.Write 8/28 in its simplest form. =
  17. 17.Is 6/20 in its simplest form? (a) No (b) Yes
  18. 18.What is the HCF of 49 and 56?
  19. 19.Write 21/28 in its simplest form. =
  20. 20.Is 4/6 in its simplest form? (a) No (b) Yes
  21. 21.Is 18/21 in its simplest form? (a) No (b) Yes
  22. 22.Write 14/63 in its simplest form. =
  23. 23.Is 1/4 in its simplest form? (a) No (b) Yes
  24. 24.Is 21/30 in its simplest form? (a) No (b) Yes
  25. 25.Write 35/40 in its simplest form. =
  26. 26.Write 21/27 in its simplest form. =
  27. 27.What is the HCF of 4 and 20?
  28. 28.Write 6/14 in its simplest form. =
  29. 29.Is 10/45 in its simplest form? (a) No (b) Yes
  30. 30.What is the HCF of 12 and 20?
  31. 31.What is the HCF of 12 and 32?
  32. 32.Write 54/60 in its simplest form. =
  33. 33.Write 8/72 in its simplest form. =
  34. 34.Write 9/21 in its simplest form. =
  35. 35.What is the HCF of 63 and 90?
  36. 36.Write 12/18 in its simplest form. =
  37. 37.Is 25/40 in its simplest form? (a) Yes (b) No
  38. 38.Is 2/3 in its simplest form? (a) Yes (b) No
  39. 39.Write 10/12 in its simplest form. =
  40. 40.Is 5/40 in its simplest form? (a) Yes (b) No

Answer key

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

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