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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 563 · 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 3/15 in its simplest form. =
  2. 2.Write 18/20 in its simplest form. =
  3. 3.Write 5/50 in its simplest form. =
  4. 4.What is the HCF of 35 and 45?
  5. 5.Is 1/3 in its simplest form? (a) No (b) Yes
  6. 6.Is 4/5 in its simplest form? (a) No (b) Yes
  7. 7.Write 36/81 in its simplest form. =
  8. 8.What is the HCF of 25 and 30?
  9. 9.What is the HCF of 2 and 10?
  10. 10.What is the HCF of 6 and 8?
  11. 11.Is 20/45 in its simplest form? (a) Yes (b) No
  12. 12.Write 3/6 in its simplest form. =
  13. 13.Write 4/6 in its simplest form. =
  14. 14.Is 6/9 in its simplest form? (a) Yes (b) No
  15. 15.Write 20/25 in its simplest form. =
  16. 16.Is 4/9 in its simplest form? (a) Yes (b) No
  17. 17.What is the HCF of 21 and 28?
  18. 18.Write 6/24 in its simplest form. =
  19. 19.Write 35/56 in its simplest form. =
  20. 20.Write 2/6 in its simplest form. =
  21. 21.Write 9/54 in its simplest form. =
  22. 22.Is 7/10 in its simplest form? (a) Yes (b) No
  23. 23.What is the HCF of 4 and 16?
  24. 24.Is 3/8 in its simplest form? (a) No (b) Yes
  25. 25.Write 3/12 in its simplest form. =
  26. 26.What is the HCF of 42 and 49?
  27. 27.Is 10/16 in its simplest form? (a) No (b) Yes
  28. 28.Is 2/3 in its simplest form? (a) No (b) Yes
  29. 29.Write 18/27 in its simplest form. =
  30. 30.Is 15/24 in its simplest form? (a) Yes (b) No
  31. 31.Write 14/20 in its simplest form. =
  32. 32.Is 28/40 in its simplest form? (a) Yes (b) No
  33. 33.Write 18/24 in its simplest form. =
  34. 34.Write 42/49 in its simplest form. =
  35. 35.Is 1/6 in its simplest form? (a) Yes (b) No
  36. 36.Write 28/36 in its simplest form. =
  37. 37.What is the HCF of 40 and 56?
  38. 38.Write 36/63 in its simplest form. =
  39. 39.Is 2/5 in its simplest form? (a) Yes (b) No
  40. 40.Write 9/30 in its simplest form. =

Answer key

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

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