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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 475 · 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 30/35 in its simplest form? (a) No (b) Yes
  2. 2.What is the HCF of 36 and 63?
  3. 3.Write 25/40 in its simplest form. =
  4. 4.Is 8/28 in its simplest form? (a) Yes (b) No
  5. 5.Write 3/21 in its simplest form. =
  6. 6.What is the HCF of 5 and 25?
  7. 7.Is 4/8 in its simplest form? (a) No (b) Yes
  8. 8.Write 8/16 in its simplest form. =
  9. 9.Write 28/35 in its simplest form. =
  10. 10.Is 2/9 in its simplest form? (a) Yes (b) No
  11. 11.Write 12/30 in its simplest form. =
  12. 12.Is 8/14 in its simplest form? (a) No (b) Yes
  13. 13.What is the HCF of 3 and 12?
  14. 14.Write 3/6 in its simplest form. =
  15. 15.Is 1/3 in its simplest form? (a) Yes (b) No
  16. 16.Is 5/8 in its simplest form? (a) No (b) Yes
  17. 17.Write 2/8 in its simplest form. =
  18. 18.Is 7/9 in its simplest form? (a) No (b) Yes
  19. 19.Is 5/15 in its simplest form? (a) No (b) Yes
  20. 20.Write 56/64 in its simplest form. =
  21. 21.What is the HCF of 20 and 24?
  22. 22.Write 6/24 in its simplest form. =
  23. 23.What is the HCF of 10 and 25?
  24. 24.Is 2/5 in its simplest form? (a) No (b) Yes
  25. 25.Is 4/12 in its simplest form? (a) Yes (b) No
  26. 26.Write 42/48 in its simplest form. =
  27. 27.What is the HCF of 15 and 25?
  28. 28.What is the HCF of 27 and 72?
  29. 29.What is the HCF of 2 and 12?
  30. 30.Write 4/10 in its simplest form. =
  31. 31.Is 20/25 in its simplest form? (a) Yes (b) No
  32. 32.What is the HCF of 9 and 30?
  33. 33.What is the HCF of 6 and 10?
  34. 34.What is the HCF of 3 and 21?
  35. 35.Write 3/15 in its simplest form. =
  36. 36.Is 5/6 in its simplest form? (a) Yes (b) No
  37. 37.Write 2/4 in its simplest form. =
  38. 38.Is 3/5 in its simplest form? (a) Yes (b) No
  39. 39.Write 18/45 in its simplest form. =
  40. 40.Is 9/12 in its simplest form? (a) Yes (b) No

Answer key

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

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