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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 857 · 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 6/15 in its simplest form? (a) No (b) Yes
  2. 2.Is 2/7 in its simplest form? (a) Yes (b) No
  3. 3.Is 3/4 in its simplest form? (a) Yes (b) No
  4. 4.Is 4/10 in its simplest form? (a) No (b) Yes
  5. 5.Write 30/35 in its simplest form. =
  6. 6.What is the HCF of 30 and 54?
  7. 7.Write 7/21 in its simplest form. =
  8. 8.Is 1/2 in its simplest form? (a) No (b) Yes
  9. 9.Write 6/27 in its simplest form. =
  10. 10.Write 4/12 in its simplest form. =
  11. 11.What is the HCF of 15 and 40?
  12. 12.Write 6/16 in its simplest form. =
  13. 13.Write 8/16 in its simplest form. =
  14. 14.Is 1/9 in its simplest form? (a) No (b) Yes
  15. 15.Write 36/81 in its simplest form. =
  16. 16.Write 4/20 in its simplest form. =
  17. 17.What is the HCF of 28 and 32?
  18. 18.What is the HCF of 7 and 42?
  19. 19.Write 2/20 in its simplest form. =
  20. 20.Is 5/20 in its simplest form? (a) No (b) Yes
  21. 21.What is the HCF of 6 and 15?
  22. 22.What is the HCF of 40 and 64?
  23. 23.Write 5/15 in its simplest form. =
  24. 24.Write 15/40 in its simplest form. =
  25. 25.Is 6/21 in its simplest form? (a) No (b) Yes
  26. 26.Is 6/54 in its simplest form? (a) Yes (b) No
  27. 27.Write 54/63 in its simplest form. =
  28. 28.What is the HCF of 8 and 48?
  29. 29.Write 6/10 in its simplest form. =
  30. 30.Write 8/56 in its simplest form. =
  31. 31.Write 8/14 in its simplest form. =
  32. 32.Write 2/6 in its simplest form. =
  33. 33.Is 9/24 in its simplest form? (a) No (b) Yes
  34. 34.Is 4/16 in its simplest form? (a) Yes (b) No
  35. 35.Write 35/49 in its simplest form. =
  36. 36.What is the HCF of 8 and 24?
  37. 37.Write 35/56 in its simplest form. =
  38. 38.What is the HCF of 4 and 8?
  39. 39.What is the HCF of 18 and 42?
  40. 40.Is 3/5 in its simplest form? (a) No (b) Yes

Answer key

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

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