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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 470 · 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 16/56 in its simplest form. =
  2. 2.What is the HCF of 16 and 24?
  3. 3.Write 4/6 in its simplest form. =
  4. 4.What is the HCF of 40 and 48?
  5. 5.Write 8/10 in its simplest form. =
  6. 6.Write 8/32 in its simplest form. =
  7. 7.Is 4/7 in its simplest form? (a) No (b) Yes
  8. 8.What is the HCF of 4 and 40?
  9. 9.What is the HCF of 18 and 48?
  10. 10.Write 9/36 in its simplest form. =
  11. 11.Write 7/28 in its simplest form. =
  12. 12.Write 6/18 in its simplest form. =
  13. 13.What is the HCF of 6 and 21?
  14. 14.Is 10/18 in its simplest form? (a) Yes (b) No
  15. 15.What is the HCF of 20 and 32?
  16. 16.What is the HCF of 9 and 30?
  17. 17.Is 18/20 in its simplest form? (a) Yes (b) No
  18. 18.What is the HCF of 2 and 20?
  19. 19.Write 7/63 in its simplest form. =
  20. 20.What is the HCF of 28 and 40?
  21. 21.Is 7/10 in its simplest form? (a) No (b) Yes
  22. 22.Is 5/9 in its simplest form? (a) Yes (b) No
  23. 23.Write 4/36 in its simplest form. =
  24. 24.What is the HCF of 48 and 56?
  25. 25.What is the HCF of 64 and 72?
  26. 26.Is 5/30 in its simplest form? (a) No (b) Yes
  27. 27.Write 56/72 in its simplest form. =
  28. 28.Write 8/20 in its simplest form. =
  29. 29.Is 6/14 in its simplest form? (a) No (b) Yes
  30. 30.Write 6/16 in its simplest form. =
  31. 31.Is 3/4 in its simplest form? (a) No (b) Yes
  32. 32.Write 42/54 in its simplest form. =
  33. 33.Is 12/15 in its simplest form? (a) Yes (b) No
  34. 34.Write 12/30 in its simplest form. =
  35. 35.Is 2/7 in its simplest form? (a) Yes (b) No
  36. 36.What is the HCF of 14 and 63?
  37. 37.What is the HCF of 9 and 36?
  38. 38.Write 18/60 in its simplest form. =
  39. 39.Write 18/27 in its simplest form. =
  40. 40.Is 36/42 in its simplest form? (a) Yes (b) No

Answer key

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

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