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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 842 · 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 10/15 in its simplest form. =
  2. 2.Write 10/16 in its simplest form. =
  3. 3.Write 25/45 in its simplest form. =
  4. 4.What is the HCF of 20 and 45?
  5. 5.Write 8/18 in its simplest form. =
  6. 6.Write 45/50 in its simplest form. =
  7. 7.Write 3/6 in its simplest form. =
  8. 8.Is 4/5 in its simplest form? (a) No (b) Yes
  9. 9.Is 1/2 in its simplest form? (a) No (b) Yes
  10. 10.Write 40/45 in its simplest form. =
  11. 11.What is the HCF of 25 and 35?
  12. 12.What is the HCF of 12 and 27?
  13. 13.Write 12/32 in its simplest form. =
  14. 14.Is 16/20 in its simplest form? (a) Yes (b) No
  15. 15.Write 9/90 in its simplest form. =
  16. 16.Is 8/10 in its simplest form? (a) No (b) Yes
  17. 17.Is 3/8 in its simplest form? (a) Yes (b) No
  18. 18.Is 12/30 in its simplest form? (a) No (b) Yes
  19. 19.Is 2/8 in its simplest form? (a) Yes (b) No
  20. 20.Is 5/9 in its simplest form? (a) No (b) Yes
  21. 21.What is the HCF of 54 and 60?
  22. 22.Is 7/8 in its simplest form? (a) Yes (b) No
  23. 23.Is 2/7 in its simplest form? (a) No (b) Yes
  24. 24.Write 10/35 in its simplest form. =
  25. 25.What is the HCF of 25 and 40?
  26. 26.Is 5/45 in its simplest form? (a) Yes (b) No
  27. 27.What is the HCF of 9 and 24?
  28. 28.What is the HCF of 2 and 16?
  29. 29.What is the HCF of 8 and 36?
  30. 30.What is the HCF of 7 and 28?
  31. 31.Write 6/18 in its simplest form. =
  32. 32.Write 35/49 in its simplest form. =
  33. 33.Is 5/7 in its simplest form? (a) Yes (b) No
  34. 34.Write 3/9 in its simplest form. =
  35. 35.What is the HCF of 35 and 45?
  36. 36.Is 24/27 in its simplest form? (a) Yes (b) No
  37. 37.Write 36/81 in its simplest form. =
  38. 38.Write 14/63 in its simplest form. =
  39. 39.Is 1/7 in its simplest form? (a) No (b) Yes
  40. 40.Is 20/28 in its simplest form? (a) No (b) Yes

Answer key

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

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