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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 985 · 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 3/18 in its simplest form? (a) Yes (b) No
  2. 2.Write 28/35 in its simplest form. =
  3. 3.Is 2/7 in its simplest form? (a) Yes (b) No
  4. 4.Write 5/15 in its simplest form. =
  5. 5.Is 7/9 in its simplest form? (a) No (b) Yes
  6. 6.Write 8/80 in its simplest form. =
  7. 7.Is 6/54 in its simplest form? (a) No (b) Yes
  8. 8.Write 21/27 in its simplest form. =
  9. 9.Is 20/36 in its simplest form? (a) Yes (b) No
  10. 10.Write 21/28 in its simplest form. =
  11. 11.Write 6/14 in its simplest form. =
  12. 12.What is the HCF of 2 and 4?
  13. 13.Write 7/35 in its simplest form. =
  14. 14.What is the HCF of 7 and 42?
  15. 15.Is 9/21 in its simplest form? (a) Yes (b) No
  16. 16.Write 24/56 in its simplest form. =
  17. 17.Is 1/8 in its simplest form? (a) No (b) Yes
  18. 18.Write 2/10 in its simplest form. =
  19. 19.What is the HCF of 54 and 63?
  20. 20.Is 18/24 in its simplest form? (a) Yes (b) No
  21. 21.What is the HCF of 3 and 18?
  22. 22.Is 7/8 in its simplest form? (a) No (b) Yes
  23. 23.Write 10/16 in its simplest form. =
  24. 24.Write 4/16 in its simplest form. =
  25. 25.What is the HCF of 16 and 20?
  26. 26.Write 24/40 in its simplest form. =
  27. 27.What is the HCF of 45 and 50?
  28. 28.What is the HCF of 30 and 54?
  29. 29.Is 3/24 in its simplest form? (a) Yes (b) No
  30. 30.What is the HCF of 8 and 16?
  31. 31.Write 28/49 in its simplest form. =
  32. 32.Is 7/10 in its simplest form? (a) Yes (b) No
  33. 33.Is 20/28 in its simplest form? (a) Yes (b) No
  34. 34.Write 6/18 in its simplest form. =
  35. 35.Write 3/12 in its simplest form. =
  36. 36.Write 30/35 in its simplest form. =
  37. 37.What is the HCF of 42 and 49?
  38. 38.Is 4/12 in its simplest form? (a) No (b) Yes
  39. 39.What is the HCF of 24 and 30?
  40. 40.Write 35/63 in its simplest form. =

Answer key

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

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