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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 373 · 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 6/36 in its simplest form. =
  2. 2.Is 9/12 in its simplest form? (a) Yes (b) No
  3. 3.Is 1/7 in its simplest form? (a) Yes (b) No
  4. 4.Is 3/5 in its simplest form? (a) Yes (b) No
  5. 5.Write 40/56 in its simplest form. =
  6. 6.Is 12/30 in its simplest form? (a) No (b) Yes
  7. 7.Write 3/18 in its simplest form. =
  8. 8.What is the HCF of 5 and 35?
  9. 9.Is 10/25 in its simplest form? (a) No (b) Yes
  10. 10.Is 1/3 in its simplest form? (a) Yes (b) No
  11. 11.Is 1/6 in its simplest form? (a) No (b) Yes
  12. 12.Is 3/7 in its simplest form? (a) Yes (b) No
  13. 13.What is the HCF of 20 and 28?
  14. 14.Is 12/21 in its simplest form? (a) Yes (b) No
  15. 15.Is 10/16 in its simplest form? (a) Yes (b) No
  16. 16.Is 24/27 in its simplest form? (a) No (b) Yes
  17. 17.What is the HCF of 35 and 45?
  18. 18.What is the HCF of 15 and 25?
  19. 19.Is 4/7 in its simplest form? (a) No (b) Yes
  20. 20.Write 9/36 in its simplest form. =
  21. 21.Is 3/10 in its simplest form? (a) No (b) Yes
  22. 22.What is the HCF of 24 and 27?
  23. 23.What is the HCF of 7 and 70?
  24. 24.Is 4/10 in its simplest form? (a) No (b) Yes
  25. 25.Is 6/10 in its simplest form? (a) Yes (b) No
  26. 26.Write 9/18 in its simplest form. =
  27. 27.Write 20/24 in its simplest form. =
  28. 28.Write 35/50 in its simplest form. =
  29. 29.What is the HCF of 25 and 30?
  30. 30.Write 45/63 in its simplest form. =
  31. 31.Write 6/12 in its simplest form. =
  32. 32.What is the HCF of 56 and 64?
  33. 33.Write 7/28 in its simplest form. =
  34. 34.Write 35/40 in its simplest form. =
  35. 35.What is the HCF of 21 and 28?
  36. 36.Write 4/28 in its simplest form. =
  37. 37.Is 2/9 in its simplest form? (a) Yes (b) No
  38. 38.Write 8/48 in its simplest form. =
  39. 39.What is the HCF of 36 and 45?
  40. 40.Is 9/15 in its simplest form? (a) Yes (b) No

Answer key

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

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