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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 77 · 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 16/28 in its simplest form. =
  2. 2.What is the HCF of 20 and 25?
  3. 3.Is 6/15 in its simplest form? (a) No (b) Yes
  4. 4.What is the HCF of 6 and 12?
  5. 5.What is the HCF of 3 and 9?
  6. 6.Is 14/20 in its simplest form? (a) No (b) Yes
  7. 7.Is 4/5 in its simplest form? (a) Yes (b) No
  8. 8.Write 18/27 in its simplest form. =
  9. 9.Write 24/30 in its simplest form. =
  10. 10.What is the HCF of 28 and 36?
  11. 11.Write 7/49 in its simplest form. =
  12. 12.Write 24/42 in its simplest form. =
  13. 13.Write 24/54 in its simplest form. =
  14. 14.What is the HCF of 42 and 49?
  15. 15.Write 12/18 in its simplest form. =
  16. 16.Is 4/7 in its simplest form? (a) No (b) Yes
  17. 17.Write 3/27 in its simplest form. =
  18. 18.Write 2/10 in its simplest form. =
  19. 19.Write 32/56 in its simplest form. =
  20. 20.Is 6/48 in its simplest form? (a) No (b) Yes
  21. 21.Write 2/16 in its simplest form. =
  22. 22.Write 63/72 in its simplest form. =
  23. 23.Write 8/28 in its simplest form. =
  24. 24.What is the HCF of 12 and 27?
  25. 25.What is the HCF of 28 and 40?
  26. 26.Write 15/21 in its simplest form. =
  27. 27.What is the HCF of 3 and 18?
  28. 28.Is 35/50 in its simplest form? (a) No (b) Yes
  29. 29.Is 4/28 in its simplest form? (a) No (b) Yes
  30. 30.Write 5/50 in its simplest form. =
  31. 31.Write 15/35 in its simplest form. =
  32. 32.What is the HCF of 12 and 14?
  33. 33.Is 20/35 in its simplest form? (a) No (b) Yes
  34. 34.Is 1/4 in its simplest form? (a) No (b) Yes
  35. 35.Is 42/60 in its simplest form? (a) No (b) Yes
  36. 36.What is the HCF of 6 and 20?
  37. 37.Write 35/49 in its simplest form. =
  38. 38.Write 21/70 in its simplest form. =
  39. 39.Write 54/60 in its simplest form. =
  40. 40.Write 8/10 in its simplest form. =

Answer key

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

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