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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 453 · 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 36/45 in its simplest form. =
  2. 2.Write 18/27 in its simplest form. =
  3. 3.Write 4/14 in its simplest form. =
  4. 4.What is the HCF of 27 and 63?
  5. 5.Write 36/40 in its simplest form. =
  6. 6.Write 2/6 in its simplest form. =
  7. 7.Is 1/4 in its simplest form? (a) No (b) Yes
  8. 8.What is the HCF of 10 and 45?
  9. 9.What is the HCF of 30 and 48?
  10. 10.Is 3/5 in its simplest form? (a) No (b) Yes
  11. 11.Write 63/72 in its simplest form. =
  12. 12.What is the HCF of 28 and 40?
  13. 13.Is 7/9 in its simplest form? (a) Yes (b) No
  14. 14.What is the HCF of 9 and 36?
  15. 15.What is the HCF of 6 and 10?
  16. 16.What is the HCF of 6 and 15?
  17. 17.Write 21/49 in its simplest form. =
  18. 18.Write 7/28 in its simplest form. =
  19. 19.Is 6/42 in its simplest form? (a) No (b) Yes
  20. 20.Write 16/18 in its simplest form. =
  21. 21.What is the HCF of 21 and 35?
  22. 22.What is the HCF of 5 and 30?
  23. 23.Write 3/6 in its simplest form. =
  24. 24.What is the HCF of 7 and 35?
  25. 25.Is 1/8 in its simplest form? (a) No (b) Yes
  26. 26.Write 10/15 in its simplest form. =
  27. 27.Is 12/32 in its simplest form? (a) Yes (b) No
  28. 28.Write 72/80 in its simplest form. =
  29. 29.What is the HCF of 15 and 18?
  30. 30.Write 30/35 in its simplest form. =
  31. 31.Is 18/20 in its simplest form? (a) No (b) Yes
  32. 32.Is 21/30 in its simplest form? (a) Yes (b) No
  33. 33.Write 3/27 in its simplest form. =
  34. 34.Write 5/35 in its simplest form. =
  35. 35.Write 12/42 in its simplest form. =
  36. 36.What is the HCF of 20 and 32?
  37. 37.What is the HCF of 15 and 20?
  38. 38.Write 35/49 in its simplest form. =
  39. 39.Is 2/12 in its simplest form? (a) No (b) Yes
  40. 40.Is 4/7 in its simplest form? (a) No (b) Yes

Answer key

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

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