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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 258 · 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 2/18 in its simplest form. =
  2. 2.Write 3/12 in its simplest form. =
  3. 3.Write 12/20 in its simplest form. =
  4. 4.What is the HCF of 35 and 56?
  5. 5.What is the HCF of 2 and 8?
  6. 6.Write 40/45 in its simplest form. =
  7. 7.Write 35/42 in its simplest form. =
  8. 8.What is the HCF of 18 and 21?
  9. 9.Write 14/16 in its simplest form. =
  10. 10.Write 9/36 in its simplest form. =
  11. 11.Write 64/72 in its simplest form. =
  12. 12.Write 4/40 in its simplest form. =
  13. 13.What is the HCF of 35 and 40?
  14. 14.Is 3/4 in its simplest form? (a) No (b) Yes
  15. 15.What is the HCF of 4 and 20?
  16. 16.Is 4/7 in its simplest form? (a) No (b) Yes
  17. 17.Write 5/15 in its simplest form. =
  18. 18.Write 27/30 in its simplest form. =
  19. 19.Is 1/10 in its simplest form? (a) No (b) Yes
  20. 20.What is the HCF of 16 and 28?
  21. 21.Write 7/28 in its simplest form. =
  22. 22.Is 4/24 in its simplest form? (a) Yes (b) No
  23. 23.What is the HCF of 21 and 30?
  24. 24.Write 16/28 in its simplest form. =
  25. 25.Is 25/40 in its simplest form? (a) No (b) Yes
  26. 26.Is 2/4 in its simplest form? (a) No (b) Yes
  27. 27.Is 8/9 in its simplest form? (a) No (b) Yes
  28. 28.What is the HCF of 15 and 18?
  29. 29.What is the HCF of 16 and 18?
  30. 30.Is 18/60 in its simplest form? (a) Yes (b) No
  31. 31.What is the HCF of 10 and 15?
  32. 32.What is the HCF of 10 and 25?
  33. 33.Is 45/50 in its simplest form? (a) Yes (b) No
  34. 34.What is the HCF of 12 and 28?
  35. 35.Is 4/5 in its simplest form? (a) No (b) Yes
  36. 36.Is 20/25 in its simplest form? (a) No (b) Yes
  37. 37.Write 12/16 in its simplest form. =
  38. 38.Write 24/30 in its simplest form. =
  39. 39.Write 30/35 in its simplest form. =
  40. 40.What is the HCF of 8 and 24?

Answer key

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

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