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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 51 · 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 5/8 in its simplest form? (a) No (b) Yes
  2. 2.What is the HCF of 28 and 32?
  3. 3.Is 5/6 in its simplest form? (a) Yes (b) No
  4. 4.Write 6/21 in its simplest form. =
  5. 5.Write 36/81 in its simplest form. =
  6. 6.Write 8/14 in its simplest form. =
  7. 7.What is the HCF of 6 and 42?
  8. 8.Is 20/25 in its simplest form? (a) No (b) Yes
  9. 9.What is the HCF of 7 and 14?
  10. 10.What is the HCF of 6 and 16?
  11. 11.Write 6/15 in its simplest form. =
  12. 12.Write 9/72 in its simplest form. =
  13. 13.Write 45/54 in its simplest form. =
  14. 14.Write 8/56 in its simplest form. =
  15. 15.Write 20/25 in its simplest form. =
  16. 16.What is the HCF of 20 and 28?
  17. 17.Write 6/10 in its simplest form. =
  18. 18.What is the HCF of 3 and 6?
  19. 19.Write 6/9 in its simplest form. =
  20. 20.Write 30/54 in its simplest form. =
  21. 21.Write 10/35 in its simplest form. =
  22. 22.Is 2/7 in its simplest form? (a) No (b) Yes
  23. 23.What is the HCF of 15 and 21?
  24. 24.What is the HCF of 27 and 30?
  25. 25.What is the HCF of 16 and 72?
  26. 26.Is 6/20 in its simplest form? (a) No (b) Yes
  27. 27.Is 8/18 in its simplest form? (a) No (b) Yes
  28. 28.Is 18/20 in its simplest form? (a) No (b) Yes
  29. 29.Is 4/40 in its simplest form? (a) Yes (b) No
  30. 30.Is 10/16 in its simplest form? (a) No (b) Yes
  31. 31.Is 9/21 in its simplest form? (a) Yes (b) No
  32. 32.What is the HCF of 24 and 80?
  33. 33.Is 36/40 in its simplest form? (a) No (b) Yes
  34. 34.Write 42/54 in its simplest form. =
  35. 35.What is the HCF of 24 and 28?
  36. 36.Write 24/40 in its simplest form. =
  37. 37.Write 12/28 in its simplest form. =
  38. 38.Write 24/80 in its simplest form. =
  39. 39.Is 3/10 in its simplest form? (a) No (b) Yes
  40. 40.Is 12/27 in its simplest form? (a) Yes (b) No

Answer key

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

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