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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 325 · 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 16/28 in its simplest form. =
  2. 2.Is 21/24 in its simplest form? (a) No (b) Yes
  3. 3.Write 6/16 in its simplest form. =
  4. 4.Write 2/6 in its simplest form. =
  5. 5.Is 9/30 in its simplest form? (a) No (b) Yes
  6. 6.Is 2/5 in its simplest form? (a) Yes (b) No
  7. 7.Write 6/18 in its simplest form. =
  8. 8.What is the HCF of 8 and 10?
  9. 9.Write 24/40 in its simplest form. =
  10. 10.Is 1/9 in its simplest form? (a) Yes (b) No
  11. 11.Write 12/20 in its simplest form. =
  12. 12.Write 24/80 in its simplest form. =
  13. 13.Is 3/5 in its simplest form? (a) No (b) Yes
  14. 14.Is 1/5 in its simplest form? (a) Yes (b) No
  15. 15.Is 9/10 in its simplest form? (a) No (b) Yes
  16. 16.Write 4/40 in its simplest form. =
  17. 17.Is 8/9 in its simplest form? (a) Yes (b) No
  18. 18.Is 4/18 in its simplest form? (a) No (b) Yes
  19. 19.Is 1/6 in its simplest form? (a) No (b) Yes
  20. 20.What is the HCF of 15 and 25?
  21. 21.Is 6/30 in its simplest form? (a) No (b) Yes
  22. 22.Write 25/30 in its simplest form. =
  23. 23.What is the HCF of 6 and 10?
  24. 24.Is 2/7 in its simplest form? (a) No (b) Yes
  25. 25.What is the HCF of 40 and 48?
  26. 26.What is the HCF of 15 and 18?
  27. 27.Write 15/35 in its simplest form. =
  28. 28.What is the HCF of 4 and 8?
  29. 29.Write 45/72 in its simplest form. =
  30. 30.Write 14/20 in its simplest form. =
  31. 31.Write 3/30 in its simplest form. =
  32. 32.Is 15/27 in its simplest form? (a) Yes (b) No
  33. 33.What is the HCF of 18 and 48?
  34. 34.What is the HCF of 28 and 35?
  35. 35.Is 14/18 in its simplest form? (a) No (b) Yes
  36. 36.Is 25/45 in its simplest form? (a) No (b) Yes
  37. 37.Is 5/7 in its simplest form? (a) No (b) Yes
  38. 38.Write 42/49 in its simplest form. =
  39. 39.Is 28/32 in its simplest form? (a) No (b) Yes
  40. 40.Write 2/10 in its simplest form. =

Answer key

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

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