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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 262 · 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.Is 7/10 in its simplest form? (a) No (b) Yes
  2. 2.Write 8/80 in its simplest form. =
  3. 3.Write 16/72 in its simplest form. =
  4. 4.What is the HCF of 18 and 27?
  5. 5.Is 5/9 in its simplest form? (a) No (b) Yes
  6. 6.Write 10/16 in its simplest form. =
  7. 7.Write 27/90 in its simplest form. =
  8. 8.Write 14/18 in its simplest form. =
  9. 9.Write 7/35 in its simplest form. =
  10. 10.Is 12/21 in its simplest form? (a) No (b) Yes
  11. 11.Write 3/24 in its simplest form. =
  12. 12.Write 15/25 in its simplest form. =
  13. 13.Write 10/18 in its simplest form. =
  14. 14.Is 4/8 in its simplest form? (a) No (b) Yes
  15. 15.What is the HCF of 35 and 40?
  16. 16.Write 12/28 in its simplest form. =
  17. 17.Write 30/48 in its simplest form. =
  18. 18.What is the HCF of 7 and 63?
  19. 19.Write 9/81 in its simplest form. =
  20. 20.What is the HCF of 24 and 54?
  21. 21.Write 6/48 in its simplest form. =
  22. 22.Is 2/6 in its simplest form? (a) Yes (b) No
  23. 23.Is 4/7 in its simplest form? (a) Yes (b) No
  24. 24.Is 6/10 in its simplest form? (a) Yes (b) No
  25. 25.What is the HCF of 8 and 24?
  26. 26.Is 1/3 in its simplest form? (a) Yes (b) No
  27. 27.What is the HCF of 4 and 36?
  28. 28.Write 7/63 in its simplest form. =
  29. 29.What is the HCF of 5 and 50?
  30. 30.Write 36/45 in its simplest form. =
  31. 31.Write 8/72 in its simplest form. =
  32. 32.Write 12/40 in its simplest form. =
  33. 33.Write 40/64 in its simplest form. =
  34. 34.Write 15/27 in its simplest form. =
  35. 35.What is the HCF of 21 and 49?
  36. 36.Is 10/16 in its simplest form? (a) No (b) Yes
  37. 37.Write 3/9 in its simplest form. =
  38. 38.Is 4/6 in its simplest form? (a) No (b) Yes
  39. 39.Is 30/42 in its simplest form? (a) No (b) Yes
  40. 40.Is 42/60 in its simplest form? (a) No (b) Yes

Answer key

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

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