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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 684 · 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 2/6 in its simplest form. =
  2. 2.Write 24/27 in its simplest form. =
  3. 3.Is 15/20 in its simplest form? (a) No (b) Yes
  4. 4.What is the HCF of 14 and 20?
  5. 5.Is 12/40 in its simplest form? (a) Yes (b) No
  6. 6.Is 1/7 in its simplest form? (a) No (b) Yes
  7. 7.Is 5/40 in its simplest form? (a) No (b) Yes
  8. 8.Write 16/40 in its simplest form. =
  9. 9.Write 72/81 in its simplest form. =
  10. 10.Write 20/32 in its simplest form. =
  11. 11.What is the HCF of 2 and 8?
  12. 12.Write 7/35 in its simplest form. =
  13. 13.What is the HCF of 21 and 49?
  14. 14.What is the HCF of 35 and 49?
  15. 15.Is 2/3 in its simplest form? (a) Yes (b) No
  16. 16.Is 5/7 in its simplest form? (a) No (b) Yes
  17. 17.Write 42/49 in its simplest form. =
  18. 18.Write 21/28 in its simplest form. =
  19. 19.Is 5/50 in its simplest form? (a) No (b) Yes
  20. 20.Write 25/35 in its simplest form. =
  21. 21.Write 18/27 in its simplest form. =
  22. 22.Is 36/42 in its simplest form? (a) Yes (b) No
  23. 23.Is 3/24 in its simplest form? (a) Yes (b) No
  24. 24.Is 1/10 in its simplest form? (a) Yes (b) No
  25. 25.Write 40/72 in its simplest form. =
  26. 26.Write 10/18 in its simplest form. =
  27. 27.Write 3/15 in its simplest form. =
  28. 28.Is 28/36 in its simplest form? (a) Yes (b) No
  29. 29.What is the HCF of 3 and 18?
  30. 30.What is the HCF of 36 and 40?
  31. 31.Is 8/36 in its simplest form? (a) No (b) Yes
  32. 32.Is 18/24 in its simplest form? (a) Yes (b) No
  33. 33.What is the HCF of 5 and 10?
  34. 34.Write 49/56 in its simplest form. =
  35. 35.Is 5/20 in its simplest form? (a) No (b) Yes
  36. 36.What is the HCF of 25 and 35?
  37. 37.What is the HCF of 24 and 32?
  38. 38.What is the HCF of 18 and 48?
  39. 39.Write 8/32 in its simplest form. =
  40. 40.What is the HCF of 9 and 21?

Answer key

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

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