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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 901 · 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 1/2 in its simplest form? (a) No (b) Yes
  2. 2.What is the HCF of 8 and 32?
  3. 3.Write 49/56 in its simplest form. =
  4. 4.Is 4/7 in its simplest form? (a) No (b) Yes
  5. 5.What is the HCF of 40 and 48?
  6. 6.Write 3/9 in its simplest form. =
  7. 7.Write 9/63 in its simplest form. =
  8. 8.What is the HCF of 8 and 10?
  9. 9.Is 16/36 in its simplest form? (a) Yes (b) No
  10. 10.What is the HCF of 42 and 54?
  11. 11.What is the HCF of 25 and 40?
  12. 12.Write 24/28 in its simplest form. =
  13. 13.What is the HCF of 7 and 56?
  14. 14.What is the HCF of 24 and 28?
  15. 15.Write 12/20 in its simplest form. =
  16. 16.Is 5/6 in its simplest form? (a) Yes (b) No
  17. 17.Is 15/24 in its simplest form? (a) Yes (b) No
  18. 18.Is 5/9 in its simplest form? (a) Yes (b) No
  19. 19.What is the HCF of 7 and 35?
  20. 20.What is the HCF of 12 and 20?
  21. 21.Is 25/30 in its simplest form? (a) No (b) Yes
  22. 22.What is the HCF of 12 and 30?
  23. 23.What is the HCF of 14 and 35?
  24. 24.What is the HCF of 6 and 48?
  25. 25.What is the HCF of 27 and 45?
  26. 26.Write 9/90 in its simplest form. =
  27. 27.Write 3/21 in its simplest form. =
  28. 28.Write 6/24 in its simplest form. =
  29. 29.Write 32/40 in its simplest form. =
  30. 30.Write 15/25 in its simplest form. =
  31. 31.Write 27/30 in its simplest form. =
  32. 32.Write 8/28 in its simplest form. =
  33. 33.Is 2/20 in its simplest form? (a) No (b) Yes
  34. 34.Write 27/36 in its simplest form. =
  35. 35.Write 8/48 in its simplest form. =
  36. 36.Write 28/63 in its simplest form. =
  37. 37.What is the HCF of 54 and 63?
  38. 38.Is 30/42 in its simplest form? (a) Yes (b) No
  39. 39.Write 5/20 in its simplest form. =
  40. 40.What is the HCF of 9 and 81?

Answer key

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

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