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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 977 · 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 2/3 in its simplest form? (a) No (b) Yes
  2. 2.Is 15/25 in its simplest form? (a) No (b) Yes
  3. 3.Write 14/20 in its simplest form. =
  4. 4.Write 10/14 in its simplest form. =
  5. 5.What is the HCF of 18 and 42?
  6. 6.What is the HCF of 7 and 49?
  7. 7.Write 4/40 in its simplest form. =
  8. 8.What is the HCF of 48 and 56?
  9. 9.Is 12/18 in its simplest form? (a) Yes (b) No
  10. 10.Write 16/72 in its simplest form. =
  11. 11.Is 42/54 in its simplest form? (a) No (b) Yes
  12. 12.Write 5/20 in its simplest form. =
  13. 13.Write 9/27 in its simplest form. =
  14. 14.Write 12/16 in its simplest form. =
  15. 15.What is the HCF of 35 and 40?
  16. 16.What is the HCF of 10 and 16?
  17. 17.What is the HCF of 16 and 56?
  18. 18.Write 8/48 in its simplest form. =
  19. 19.Write 6/24 in its simplest form. =
  20. 20.Is 4/5 in its simplest form? (a) No (b) Yes
  21. 21.Is 2/4 in its simplest form? (a) No (b) Yes
  22. 22.Is 2/9 in its simplest form? (a) No (b) Yes
  23. 23.Write 9/63 in its simplest form. =
  24. 24.Write 3/24 in its simplest form. =
  25. 25.Is 12/32 in its simplest form? (a) No (b) Yes
  26. 26.What is the HCF of 7 and 21?
  27. 27.Write 3/12 in its simplest form. =
  28. 28.Is 35/40 in its simplest form? (a) No (b) Yes
  29. 29.Is 4/12 in its simplest form? (a) No (b) Yes
  30. 30.What is the HCF of 6 and 9?
  31. 31.Is 7/8 in its simplest form? (a) No (b) Yes
  32. 32.Write 7/28 in its simplest form. =
  33. 33.Is 4/16 in its simplest form? (a) Yes (b) No
  34. 34.Write 49/56 in its simplest form. =
  35. 35.Write 3/15 in its simplest form. =
  36. 36.What is the HCF of 42 and 49?
  37. 37.Write 12/28 in its simplest form. =
  38. 38.Write 15/21 in its simplest form. =
  39. 39.Is 12/54 in its simplest form? (a) Yes (b) No
  40. 40.Is 14/20 in its simplest form? (a) Yes (b) No

Answer key

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

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