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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 474 · 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 20/35 in its simplest form? (a) No (b) Yes
  2. 2.Write 45/81 in its simplest form. =
  3. 3.Write 4/10 in its simplest form. =
  4. 4.Is 24/54 in its simplest form? (a) No (b) Yes
  5. 5.Write 32/56 in its simplest form. =
  6. 6.Is 15/18 in its simplest form? (a) No (b) Yes
  7. 7.What is the HCF of 14 and 21?
  8. 8.Write 3/30 in its simplest form. =
  9. 9.Is 30/48 in its simplest form? (a) Yes (b) No
  10. 10.Is 8/18 in its simplest form? (a) No (b) Yes
  11. 11.Is 1/4 in its simplest form? (a) No (b) Yes
  12. 12.Is 2/4 in its simplest form? (a) Yes (b) No
  13. 13.What is the HCF of 18 and 27?
  14. 14.Is 10/15 in its simplest form? (a) Yes (b) No
  15. 15.What is the HCF of 6 and 16?
  16. 16.Write 16/18 in its simplest form. =
  17. 17.Is 2/5 in its simplest form? (a) Yes (b) No
  18. 18.Write 8/24 in its simplest form. =
  19. 19.What is the HCF of 24 and 42?
  20. 20.Is 5/6 in its simplest form? (a) No (b) Yes
  21. 21.Write 54/60 in its simplest form. =
  22. 22.What is the HCF of 81 and 90?
  23. 23.Is 12/30 in its simplest form? (a) Yes (b) No
  24. 24.Write 42/49 in its simplest form. =
  25. 25.Write 2/8 in its simplest form. =
  26. 26.Is 3/5 in its simplest form? (a) Yes (b) No
  27. 27.Is 5/50 in its simplest form? (a) Yes (b) No
  28. 28.Write 4/24 in its simplest form. =
  29. 29.Is 8/9 in its simplest form? (a) Yes (b) No
  30. 30.What is the HCF of 12 and 27?
  31. 31.What is the HCF of 2 and 14?
  32. 32.Is 1/2 in its simplest form? (a) No (b) Yes
  33. 33.Is 9/10 in its simplest form? (a) No (b) Yes
  34. 34.What is the HCF of 56 and 64?
  35. 35.Write 28/35 in its simplest form. =
  36. 36.Write 7/28 in its simplest form. =
  37. 37.Is 3/15 in its simplest form? (a) No (b) Yes
  38. 38.What is the HCF of 2 and 20?
  39. 39.Is 9/12 in its simplest form? (a) Yes (b) No
  40. 40.What is the HCF of 49 and 63?

Answer key

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

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