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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 926 · 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.What is the HCF of 15 and 25?
  2. 2.Is 30/48 in its simplest form? (a) No (b) Yes
  3. 3.Is 5/6 in its simplest form? (a) Yes (b) No
  4. 4.Is 5/15 in its simplest form? (a) Yes (b) No
  5. 5.Write 10/16 in its simplest form. =
  6. 6.What is the HCF of 16 and 18?
  7. 7.Is 6/7 in its simplest form? (a) Yes (b) No
  8. 8.What is the HCF of 6 and 20?
  9. 9.Write 16/40 in its simplest form. =
  10. 10.Is 42/48 in its simplest form? (a) No (b) Yes
  11. 11.Is 2/3 in its simplest form? (a) No (b) Yes
  12. 12.Is 6/12 in its simplest form? (a) Yes (b) No
  13. 13.Is 10/35 in its simplest form? (a) No (b) Yes
  14. 14.Write 36/81 in its simplest form. =
  15. 15.What is the HCF of 45 and 50?
  16. 16.What is the HCF of 20 and 25?
  17. 17.Write 8/64 in its simplest form. =
  18. 18.What is the HCF of 8 and 72?
  19. 19.Write 16/56 in its simplest form. =
  20. 20.Write 6/30 in its simplest form. =
  21. 21.Is 25/45 in its simplest form? (a) Yes (b) No
  22. 22.Write 32/56 in its simplest form. =
  23. 23.What is the HCF of 4 and 36?
  24. 24.Is 6/10 in its simplest form? (a) No (b) Yes
  25. 25.Is 16/18 in its simplest form? (a) Yes (b) No
  26. 26.Write 5/15 in its simplest form. =
  27. 27.Write 2/16 in its simplest form. =
  28. 28.Is 1/9 in its simplest form? (a) No (b) Yes
  29. 29.What is the HCF of 10 and 45?
  30. 30.What is the HCF of 63 and 72?
  31. 31.Write 24/40 in its simplest form. =
  32. 32.What is the HCF of 2 and 16?
  33. 33.Write 8/18 in its simplest form. =
  34. 34.What is the HCF of 16 and 20?
  35. 35.Write 10/45 in its simplest form. =
  36. 36.Is 1/7 in its simplest form? (a) Yes (b) No
  37. 37.What is the HCF of 14 and 16?
  38. 38.What is the HCF of 20 and 45?
  39. 39.What is the HCF of 2 and 20?
  40. 40.Write 8/24 in its simplest form. =

Answer key

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

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