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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 543 · 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 2/3 in its simplest form? (a) Yes (b) No
  2. 2.Write 9/15 in its simplest form. =
  3. 3.Write 16/36 in its simplest form. =
  4. 4.Write 7/21 in its simplest form. =
  5. 5.Is 2/4 in its simplest form? (a) No (b) Yes
  6. 6.What is the HCF of 7 and 70?
  7. 7.Is 1/4 in its simplest form? (a) No (b) Yes
  8. 8.What is the HCF of 10 and 12?
  9. 9.Write 12/16 in its simplest form. =
  10. 10.Is 24/30 in its simplest form? (a) No (b) Yes
  11. 11.Write 21/27 in its simplest form. =
  12. 12.Is 4/24 in its simplest form? (a) Yes (b) No
  13. 13.Is 2/9 in its simplest form? (a) No (b) Yes
  14. 14.What is the HCF of 3 and 21?
  15. 15.Is 18/21 in its simplest form? (a) Yes (b) No
  16. 16.Is 5/50 in its simplest form? (a) No (b) Yes
  17. 17.Is 12/14 in its simplest form? (a) Yes (b) No
  18. 18.What is the HCF of 9 and 24?
  19. 19.Is 4/9 in its simplest form? (a) Yes (b) No
  20. 20.What is the HCF of 5 and 45?
  21. 21.Write 4/12 in its simplest form. =
  22. 22.What is the HCF of 24 and 30?
  23. 23.Is 1/9 in its simplest form? (a) No (b) Yes
  24. 24.Write 9/72 in its simplest form. =
  25. 25.Write 56/64 in its simplest form. =
  26. 26.What is the HCF of 25 and 40?
  27. 27.Is 5/7 in its simplest form? (a) No (b) Yes
  28. 28.Write 12/20 in its simplest form. =
  29. 29.Write 5/25 in its simplest form. =
  30. 30.Is 1/5 in its simplest form? (a) No (b) Yes
  31. 31.Write 7/49 in its simplest form. =
  32. 32.Write 15/21 in its simplest form. =
  33. 33.What is the HCF of 20 and 45?
  34. 34.What is the HCF of 8 and 36?
  35. 35.Write 16/72 in its simplest form. =
  36. 36.Is 36/40 in its simplest form? (a) No (b) Yes
  37. 37.What is the HCF of 6 and 27?
  38. 38.Write 15/50 in its simplest form. =
  39. 39.What is the HCF of 18 and 20?
  40. 40.What is the HCF of 28 and 49?

Answer key

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

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