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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 749 · 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 5/9 in its simplest form? (a) Yes (b) No
  2. 2.Is 25/40 in its simplest form? (a) No (b) Yes
  3. 3.What is the HCF of 14 and 16?
  4. 4.Is 10/25 in its simplest form? (a) No (b) Yes
  5. 5.What is the HCF of 35 and 42?
  6. 6.Write 8/56 in its simplest form. =
  7. 7.Is 2/10 in its simplest form? (a) No (b) Yes
  8. 8.Write 8/72 in its simplest form. =
  9. 9.Write 32/36 in its simplest form. =
  10. 10.Write 20/25 in its simplest form. =
  11. 11.Write 12/32 in its simplest form. =
  12. 12.Write 14/16 in its simplest form. =
  13. 13.Write 12/27 in its simplest form. =
  14. 14.What is the HCF of 12 and 20?
  15. 15.What is the HCF of 49 and 56?
  16. 16.Is 8/14 in its simplest form? (a) No (b) Yes
  17. 17.Write 8/10 in its simplest form. =
  18. 18.Is 18/60 in its simplest form? (a) No (b) Yes
  19. 19.Write 27/45 in its simplest form. =
  20. 20.What is the HCF of 35 and 45?
  21. 21.Write 24/64 in its simplest form. =
  22. 22.What is the HCF of 21 and 49?
  23. 23.What is the HCF of 8 and 56?
  24. 24.Is 3/8 in its simplest form? (a) No (b) Yes
  25. 25.What is the HCF of 9 and 72?
  26. 26.Is 15/18 in its simplest form? (a) Yes (b) No
  27. 27.Is 21/30 in its simplest form? (a) Yes (b) No
  28. 28.Write 18/27 in its simplest form. =
  29. 29.What is the HCF of 6 and 21?
  30. 30.Write 3/30 in its simplest form. =
  31. 31.Is 2/9 in its simplest form? (a) No (b) Yes
  32. 32.What is the HCF of 6 and 8?
  33. 33.Write 27/30 in its simplest form. =
  34. 34.What is the HCF of 12 and 14?
  35. 35.Write 20/32 in its simplest form. =
  36. 36.Write 2/18 in its simplest form. =
  37. 37.Is 2/12 in its simplest form? (a) Yes (b) No
  38. 38.Is 1/3 in its simplest form? (a) Yes (b) No
  39. 39.What is the HCF of 42 and 48?
  40. 40.What is the HCF of 16 and 20?

Answer key

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

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