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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 415 · 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 42/54 in its simplest form. =
  2. 2.Write 8/80 in its simplest form. =
  3. 3.Write 42/48 in its simplest form. =
  4. 4.Write 8/36 in its simplest form. =
  5. 5.Is 3/7 in its simplest form? (a) Yes (b) No
  6. 6.Write 72/81 in its simplest form. =
  7. 7.Write 16/40 in its simplest form. =
  8. 8.What is the HCF of 8 and 32?
  9. 9.What is the HCF of 4 and 18?
  10. 10.Write 14/18 in its simplest form. =
  11. 11.Write 21/30 in its simplest form. =
  12. 12.What is the HCF of 4 and 8?
  13. 13.Write 36/42 in its simplest form. =
  14. 14.Write 8/40 in its simplest form. =
  15. 15.Write 24/28 in its simplest form. =
  16. 16.Write 35/45 in its simplest form. =
  17. 17.Is 6/20 in its simplest form? (a) Yes (b) No
  18. 18.Write 25/35 in its simplest form. =
  19. 19.Is 2/20 in its simplest form? (a) Yes (b) No
  20. 20.What is the HCF of 40 and 45?
  21. 21.Is 3/9 in its simplest form? (a) No (b) Yes
  22. 22.What is the HCF of 25 and 40?
  23. 23.Write 15/50 in its simplest form. =
  24. 24.Write 9/30 in its simplest form. =
  25. 25.Is 4/7 in its simplest form? (a) No (b) Yes
  26. 26.Is 9/15 in its simplest form? (a) No (b) Yes
  27. 27.What is the HCF of 9 and 30?
  28. 28.Write 9/18 in its simplest form. =
  29. 29.Is 3/4 in its simplest form? (a) Yes (b) No
  30. 30.Is 3/8 in its simplest form? (a) No (b) Yes
  31. 31.Is 5/30 in its simplest form? (a) Yes (b) No
  32. 32.What is the HCF of 14 and 16?
  33. 33.What is the HCF of 25 and 35?
  34. 34.What is the HCF of 12 and 18?
  35. 35.Write 8/32 in its simplest form. =
  36. 36.What is the HCF of 4 and 12?
  37. 37.What is the HCF of 30 and 35?
  38. 38.Is 28/32 in its simplest form? (a) No (b) Yes
  39. 39.Write 3/24 in its simplest form. =
  40. 40.Write 8/24 in its simplest form. =

Answer key

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

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