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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 235 · 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 6/18 in its simplest form. =
  2. 2.Is 4/8 in its simplest form? (a) No (b) Yes
  3. 3.What is the HCF of 8 and 10?
  4. 4.Write 6/15 in its simplest form. =
  5. 5.What is the HCF of 16 and 20?
  6. 6.Write 27/90 in its simplest form. =
  7. 7.What is the HCF of 20 and 36?
  8. 8.Write 12/32 in its simplest form. =
  9. 9.Is 2/7 in its simplest form? (a) Yes (b) No
  10. 10.Write 42/60 in its simplest form. =
  11. 11.What is the HCF of 16 and 24?
  12. 12.What is the HCF of 7 and 35?
  13. 13.Write 6/8 in its simplest form. =
  14. 14.Write 18/30 in its simplest form. =
  15. 15.Is 10/25 in its simplest form? (a) Yes (b) No
  16. 16.Write 14/18 in its simplest form. =
  17. 17.Is 25/30 in its simplest form? (a) No (b) Yes
  18. 18.Is 6/16 in its simplest form? (a) No (b) Yes
  19. 19.Is 7/10 in its simplest form? (a) No (b) Yes
  20. 20.Is 6/54 in its simplest form? (a) No (b) Yes
  21. 21.Write 12/15 in its simplest form. =
  22. 22.Is 4/7 in its simplest form? (a) Yes (b) No
  23. 23.Is 6/15 in its simplest form? (a) No (b) Yes
  24. 24.Is 12/54 in its simplest form? (a) No (b) Yes
  25. 25.Is 3/24 in its simplest form? (a) No (b) Yes
  26. 26.What is the HCF of 12 and 30?
  27. 27.What is the HCF of 8 and 80?
  28. 28.What is the HCF of 12 and 15?
  29. 29.Write 5/15 in its simplest form. =
  30. 30.What is the HCF of 14 and 49?
  31. 31.Is 9/10 in its simplest form? (a) Yes (b) No
  32. 32.Is 1/6 in its simplest form? (a) No (b) Yes
  33. 33.Is 27/30 in its simplest form? (a) Yes (b) No
  34. 34.Is 2/6 in its simplest form? (a) No (b) Yes
  35. 35.What is the HCF of 24 and 40?
  36. 36.Write 16/20 in its simplest form. =
  37. 37.Is 5/7 in its simplest form? (a) No (b) Yes
  38. 38.What is the HCF of 21 and 27?
  39. 39.Write 3/12 in its simplest form. =
  40. 40.Write 14/20 in its simplest form. =

Answer key

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

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