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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 568 · 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 5/7 in its simplest form? (a) Yes (b) No
  2. 2.Is 1/10 in its simplest form? (a) No (b) Yes
  3. 3.Is 24/42 in its simplest form? (a) Yes (b) No
  4. 4.Write 2/4 in its simplest form. =
  5. 5.Write 27/72 in its simplest form. =
  6. 6.Is 6/16 in its simplest form? (a) Yes (b) No
  7. 7.What is the HCF of 18 and 60?
  8. 8.Is 8/12 in its simplest form? (a) No (b) Yes
  9. 9.Is 4/16 in its simplest form? (a) Yes (b) No
  10. 10.Is 1/8 in its simplest form? (a) No (b) Yes
  11. 11.Write 14/49 in its simplest form. =
  12. 12.What is the HCF of 30 and 48?
  13. 13.Is 40/45 in its simplest form? (a) Yes (b) No
  14. 14.Is 1/6 in its simplest form? (a) No (b) Yes
  15. 15.Write 10/35 in its simplest form. =
  16. 16.Is 3/10 in its simplest form? (a) No (b) Yes
  17. 17.Write 28/35 in its simplest form. =
  18. 18.What is the HCF of 21 and 30?
  19. 19.Is 10/45 in its simplest form? (a) No (b) Yes
  20. 20.What is the HCF of 8 and 32?
  21. 21.Write 6/9 in its simplest form. =
  22. 22.Write 24/42 in its simplest form. =
  23. 23.Is 3/5 in its simplest form? (a) No (b) Yes
  24. 24.What is the HCF of 10 and 18?
  25. 25.Write 25/40 in its simplest form. =
  26. 26.Is 5/8 in its simplest form? (a) No (b) Yes
  27. 27.Write 5/40 in its simplest form. =
  28. 28.Is 2/6 in its simplest form? (a) No (b) Yes
  29. 29.Is 1/3 in its simplest form? (a) No (b) Yes
  30. 30.What is the HCF of 36 and 81?
  31. 31.Write 2/8 in its simplest form. =
  32. 32.What is the HCF of 15 and 40?
  33. 33.Write 4/18 in its simplest form. =
  34. 34.Is 8/36 in its simplest form? (a) Yes (b) No
  35. 35.What is the HCF of 24 and 32?
  36. 36.Write 56/80 in its simplest form. =
  37. 37.Is 4/5 in its simplest form? (a) Yes (b) No
  38. 38.Write 35/63 in its simplest form. =
  39. 39.Is 4/28 in its simplest form? (a) Yes (b) No
  40. 40.Is 6/30 in its simplest form? (a) Yes (b) No

Answer key

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

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