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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 527 · 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 6/12 in its simplest form. =
  2. 2.Write 27/72 in its simplest form. =
  3. 3.What is the HCF of 6 and 48?
  4. 4.What is the HCF of 28 and 49?
  5. 5.What is the HCF of 56 and 72?
  6. 6.Is 12/20 in its simplest form? (a) No (b) Yes
  7. 7.What is the HCF of 25 and 35?
  8. 8.Write 2/6 in its simplest form. =
  9. 9.What is the HCF of 36 and 63?
  10. 10.What is the HCF of 30 and 48?
  11. 11.Is 9/10 in its simplest form? (a) Yes (b) No
  12. 12.Write 12/20 in its simplest form. =
  13. 13.Write 21/30 in its simplest form. =
  14. 14.What is the HCF of 54 and 63?
  15. 15.Is 20/36 in its simplest form? (a) No (b) Yes
  16. 16.What is the HCF of 18 and 63?
  17. 17.What is the HCF of 4 and 8?
  18. 18.What is the HCF of 8 and 32?
  19. 19.Is 20/45 in its simplest form? (a) Yes (b) No
  20. 20.What is the HCF of 2 and 16?
  21. 21.What is the HCF of 6 and 15?
  22. 22.Write 8/12 in its simplest form. =
  23. 23.Is 6/30 in its simplest form? (a) No (b) Yes
  24. 24.What is the HCF of 8 and 72?
  25. 25.Write 30/36 in its simplest form. =
  26. 26.Write 9/54 in its simplest form. =
  27. 27.Write 24/40 in its simplest form. =
  28. 28.Write 45/81 in its simplest form. =
  29. 29.Write 3/15 in its simplest form. =
  30. 30.Write 15/40 in its simplest form. =
  31. 31.Is 15/25 in its simplest form? (a) No (b) Yes
  32. 32.Is 6/24 in its simplest form? (a) No (b) Yes
  33. 33.Write 8/36 in its simplest form. =
  34. 34.Write 21/56 in its simplest form. =
  35. 35.Write 36/81 in its simplest form. =
  36. 36.Write 48/54 in its simplest form. =
  37. 37.What is the HCF of 15 and 20?
  38. 38.What is the HCF of 28 and 32?
  39. 39.Is 1/8 in its simplest form? (a) No (b) Yes
  40. 40.What is the HCF of 24 and 27?

Answer key

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

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