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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 97 · 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 20/25 in its simplest form? (a) No (b) Yes
  2. 2.Is 2/7 in its simplest form? (a) No (b) Yes
  3. 3.What is the HCF of 8 and 32?
  4. 4.Is 8/36 in its simplest form? (a) Yes (b) No
  5. 5.Is 6/54 in its simplest form? (a) No (b) Yes
  6. 6.What is the HCF of 20 and 24?
  7. 7.Write 63/70 in its simplest form. =
  8. 8.Is 15/25 in its simplest form? (a) Yes (b) No
  9. 9.Is 3/12 in its simplest form? (a) Yes (b) No
  10. 10.Is 5/20 in its simplest form? (a) Yes (b) No
  11. 11.Is 15/35 in its simplest form? (a) No (b) Yes
  12. 12.What is the HCF of 10 and 45?
  13. 13.Write 14/63 in its simplest form. =
  14. 14.Write 35/45 in its simplest form. =
  15. 15.Write 28/36 in its simplest form. =
  16. 16.Is 8/9 in its simplest form? (a) No (b) Yes
  17. 17.What is the HCF of 6 and 36?
  18. 18.Is 1/6 in its simplest form? (a) Yes (b) No
  19. 19.Is 9/10 in its simplest form? (a) No (b) Yes
  20. 20.What is the HCF of 18 and 60?
  21. 21.Is 3/24 in its simplest form? (a) No (b) Yes
  22. 22.Is 1/9 in its simplest form? (a) No (b) Yes
  23. 23.Write 10/45 in its simplest form. =
  24. 24.Write 9/30 in its simplest form. =
  25. 25.Write 5/50 in its simplest form. =
  26. 26.Is 18/20 in its simplest form? (a) No (b) Yes
  27. 27.What is the HCF of 6 and 18?
  28. 28.Is 25/45 in its simplest form? (a) Yes (b) No
  29. 29.Is 30/36 in its simplest form? (a) Yes (b) No
  30. 30.Is 2/3 in its simplest form? (a) No (b) Yes
  31. 31.Is 25/40 in its simplest form? (a) No (b) Yes
  32. 32.Write 15/18 in its simplest form. =
  33. 33.Is 3/7 in its simplest form? (a) Yes (b) No
  34. 34.Is 24/28 in its simplest form? (a) Yes (b) No
  35. 35.Write 12/30 in its simplest form. =
  36. 36.Is 1/7 in its simplest form? (a) Yes (b) No
  37. 37.What is the HCF of 36 and 63?
  38. 38.Is 18/24 in its simplest form? (a) No (b) Yes
  39. 39.What is the HCF of 49 and 56?
  40. 40.Is 15/50 in its simplest form? (a) Yes (b) No

Answer key

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

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