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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 494 · 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 20/25 in its simplest form. =
  2. 2.Write 4/18 in its simplest form. =
  3. 3.Write 16/24 in its simplest form. =
  4. 4.Is 3/7 in its simplest form? (a) No (b) Yes
  5. 5.What is the HCF of 7 and 28?
  6. 6.What is the HCF of 25 and 40?
  7. 7.Is 3/8 in its simplest form? (a) Yes (b) No
  8. 8.What is the HCF of 35 and 63?
  9. 9.What is the HCF of 36 and 63?
  10. 10.Write 3/27 in its simplest form. =
  11. 11.What is the HCF of 5 and 25?
  12. 12.Is 16/18 in its simplest form? (a) No (b) Yes
  13. 13.Write 6/9 in its simplest form. =
  14. 14.Is 10/15 in its simplest form? (a) No (b) Yes
  15. 15.Is 4/6 in its simplest form? (a) No (b) Yes
  16. 16.Write 28/35 in its simplest form. =
  17. 17.Is 1/9 in its simplest form? (a) No (b) Yes
  18. 18.What is the HCF of 24 and 28?
  19. 19.Is 18/20 in its simplest form? (a) Yes (b) No
  20. 20.Is 2/6 in its simplest form? (a) Yes (b) No
  21. 21.Write 16/20 in its simplest form. =
  22. 22.Is 14/18 in its simplest form? (a) No (b) Yes
  23. 23.Is 5/7 in its simplest form? (a) Yes (b) No
  24. 24.Write 35/49 in its simplest form. =
  25. 25.Is 6/20 in its simplest form? (a) No (b) Yes
  26. 26.What is the HCF of 9 and 30?
  27. 27.Is 1/7 in its simplest form? (a) No (b) Yes
  28. 28.Write 20/35 in its simplest form. =
  29. 29.Write 3/21 in its simplest form. =
  30. 30.What is the HCF of 8 and 48?
  31. 31.Is 6/48 in its simplest form? (a) Yes (b) No
  32. 32.Write 14/18 in its simplest form. =
  33. 33.Write 9/21 in its simplest form. =
  34. 34.What is the HCF of 2 and 8?
  35. 35.Write 3/18 in its simplest form. =
  36. 36.What is the HCF of 2 and 16?
  37. 37.Is 2/3 in its simplest form? (a) No (b) Yes
  38. 38.What is the HCF of 8 and 20?
  39. 39.Write 6/36 in its simplest form. =
  40. 40.What is the HCF of 18 and 60?

Answer key

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

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