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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 716 · 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 15/35 in its simplest form? (a) No (b) Yes
  2. 2.Write 7/70 in its simplest form. =
  3. 3.Is 5/9 in its simplest form? (a) No (b) Yes
  4. 4.What is the HCF of 24 and 30?
  5. 5.Is 8/36 in its simplest form? (a) No (b) Yes
  6. 6.Write 12/15 in its simplest form. =
  7. 7.Is 10/25 in its simplest form? (a) No (b) Yes
  8. 8.Is 12/30 in its simplest form? (a) No (b) Yes
  9. 9.What is the HCF of 18 and 45?
  10. 10.Write 2/12 in its simplest form. =
  11. 11.Is 9/10 in its simplest form? (a) No (b) Yes
  12. 12.What is the HCF of 14 and 16?
  13. 13.Is 1/10 in its simplest form? (a) Yes (b) No
  14. 14.Is 7/9 in its simplest form? (a) No (b) Yes
  15. 15.Is 15/18 in its simplest form? (a) No (b) Yes
  16. 16.What is the HCF of 6 and 20?
  17. 17.Write 20/32 in its simplest form. =
  18. 18.Is 10/14 in its simplest form? (a) No (b) Yes
  19. 19.Write 18/42 in its simplest form. =
  20. 20.Is 5/6 in its simplest form? (a) Yes (b) No
  21. 21.Write 4/40 in its simplest form. =
  22. 22.Write 7/56 in its simplest form. =
  23. 23.Write 56/63 in its simplest form. =
  24. 24.Is 3/5 in its simplest form? (a) Yes (b) No
  25. 25.Is 9/21 in its simplest form? (a) No (b) Yes
  26. 26.Write 10/12 in its simplest form. =
  27. 27.Is 20/45 in its simplest form? (a) No (b) Yes
  28. 28.What is the HCF of 5 and 25?
  29. 29.Is 16/18 in its simplest form? (a) Yes (b) No
  30. 30.Is 14/20 in its simplest form? (a) Yes (b) No
  31. 31.Write 3/12 in its simplest form. =
  32. 32.Write 14/20 in its simplest form. =
  33. 33.Is 2/7 in its simplest form? (a) No (b) Yes
  34. 34.Write 4/24 in its simplest form. =
  35. 35.Is 1/4 in its simplest form? (a) Yes (b) No
  36. 36.Write 9/15 in its simplest form. =
  37. 37.Write 12/18 in its simplest form. =
  38. 38.What is the HCF of 27 and 72?
  39. 39.What is the HCF of 12 and 32?
  40. 40.What is the HCF of 15 and 27?

Answer key

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

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