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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 457 · 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 5/20 in its simplest form. =
  2. 2.Is 30/48 in its simplest form? (a) No (b) Yes
  3. 3.What is the HCF of 9 and 15?
  4. 4.What is the HCF of 56 and 63?
  5. 5.Write 18/27 in its simplest form. =
  6. 6.What is the HCF of 24 and 54?
  7. 7.Write 6/14 in its simplest form. =
  8. 8.Is 4/28 in its simplest form? (a) Yes (b) No
  9. 9.Write 24/40 in its simplest form. =
  10. 10.Write 2/6 in its simplest form. =
  11. 11.What is the HCF of 18 and 81?
  12. 12.What is the HCF of 15 and 24?
  13. 13.Write 21/24 in its simplest form. =
  14. 14.Write 15/35 in its simplest form. =
  15. 15.Is 4/7 in its simplest form? (a) Yes (b) No
  16. 16.What is the HCF of 18 and 21?
  17. 17.Is 1/9 in its simplest form? (a) No (b) Yes
  18. 18.Is 35/40 in its simplest form? (a) Yes (b) No
  19. 19.What is the HCF of 14 and 16?
  20. 20.Is 16/28 in its simplest form? (a) Yes (b) No
  21. 21.Is 48/54 in its simplest form? (a) Yes (b) No
  22. 22.What is the HCF of 20 and 28?
  23. 23.What is the HCF of 3 and 24?
  24. 24.Write 6/60 in its simplest form. =
  25. 25.Write 20/35 in its simplest form. =
  26. 26.What is the HCF of 8 and 56?
  27. 27.Is 3/27 in its simplest form? (a) No (b) Yes
  28. 28.What is the HCF of 8 and 24?
  29. 29.Write 5/25 in its simplest form. =
  30. 30.Is 3/30 in its simplest form? (a) Yes (b) No
  31. 31.Write 2/20 in its simplest form. =
  32. 32.Is 2/7 in its simplest form? (a) No (b) Yes
  33. 33.Is 1/7 in its simplest form? (a) No (b) Yes
  34. 34.Write 4/28 in its simplest form. =
  35. 35.Write 8/64 in its simplest form. =
  36. 36.What is the HCF of 5 and 20?
  37. 37.Is 7/9 in its simplest form? (a) Yes (b) No
  38. 38.What is the HCF of 14 and 63?
  39. 39.Write 20/25 in its simplest form. =
  40. 40.Write 9/21 in its simplest form. =

Answer key

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

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