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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 872 · 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 45/50 in its simplest form. =
  2. 2.Write 4/6 in its simplest form. =
  3. 3.What is the HCF of 10 and 18?
  4. 4.Write 4/24 in its simplest form. =
  5. 5.Write 6/48 in its simplest form. =
  6. 6.Write 35/45 in its simplest form. =
  7. 7.Is 5/10 in its simplest form? (a) No (b) Yes
  8. 8.Is 2/18 in its simplest form? (a) No (b) Yes
  9. 9.What is the HCF of 3 and 6?
  10. 10.Write 6/42 in its simplest form. =
  11. 11.What is the HCF of 5 and 30?
  12. 12.What is the HCF of 28 and 36?
  13. 13.Write 54/60 in its simplest form. =
  14. 14.What is the HCF of 4 and 28?
  15. 15.Write 40/72 in its simplest form. =
  16. 16.What is the HCF of 9 and 30?
  17. 17.Write 8/20 in its simplest form. =
  18. 18.What is the HCF of 4 and 20?
  19. 19.Write 18/24 in its simplest form. =
  20. 20.What is the HCF of 7 and 14?
  21. 21.What is the HCF of 5 and 25?
  22. 22.What is the HCF of 8 and 20?
  23. 23.What is the HCF of 12 and 15?
  24. 24.Is 6/60 in its simplest form? (a) Yes (b) No
  25. 25.Is 5/9 in its simplest form? (a) No (b) Yes
  26. 26.Is 3/5 in its simplest form? (a) No (b) Yes
  27. 27.Write 32/40 in its simplest form. =
  28. 28.Is 6/12 in its simplest form? (a) Yes (b) No
  29. 29.Write 63/72 in its simplest form. =
  30. 30.Is 1/4 in its simplest form? (a) No (b) Yes
  31. 31.Write 7/35 in its simplest form. =
  32. 32.Is 1/5 in its simplest form? (a) No (b) Yes
  33. 33.What is the HCF of 18 and 48?
  34. 34.Write 27/72 in its simplest form. =
  35. 35.Write 5/25 in its simplest form. =
  36. 36.What is the HCF of 12 and 28?
  37. 37.Is 16/28 in its simplest form? (a) No (b) Yes
  38. 38.What is the HCF of 8 and 24?
  39. 39.Is 18/60 in its simplest form? (a) No (b) Yes
  40. 40.Is 8/20 in its simplest form? (a) No (b) Yes

Answer key

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

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