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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 188 · 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 7/70 in its simplest form. =
  2. 2.Is 1/10 in its simplest form? (a) Yes (b) No
  3. 3.Write 9/30 in its simplest form. =
  4. 4.Is 3/4 in its simplest form? (a) Yes (b) No
  5. 5.Write 42/49 in its simplest form. =
  6. 6.What is the HCF of 4 and 24?
  7. 7.Is 1/5 in its simplest form? (a) No (b) Yes
  8. 8.What is the HCF of 7 and 35?
  9. 9.Write 40/64 in its simplest form. =
  10. 10.Is 4/10 in its simplest form? (a) Yes (b) No
  11. 11.Write 12/32 in its simplest form. =
  12. 12.Is 5/8 in its simplest form? (a) No (b) Yes
  13. 13.What is the HCF of 15 and 25?
  14. 14.What is the HCF of 4 and 18?
  15. 15.Is 10/14 in its simplest form? (a) Yes (b) No
  16. 16.Write 12/54 in its simplest form. =
  17. 17.Is 6/48 in its simplest form? (a) No (b) Yes
  18. 18.What is the HCF of 24 and 27?
  19. 19.Is 3/7 in its simplest form? (a) Yes (b) No
  20. 20.What is the HCF of 20 and 28?
  21. 21.Is 5/7 in its simplest form? (a) Yes (b) No
  22. 22.Write 20/24 in its simplest form. =
  23. 23.Write 8/28 in its simplest form. =
  24. 24.Is 7/9 in its simplest form? (a) Yes (b) No
  25. 25.What is the HCF of 16 and 20?
  26. 26.Is 16/18 in its simplest form? (a) Yes (b) No
  27. 27.What is the HCF of 6 and 12?
  28. 28.What is the HCF of 32 and 72?
  29. 29.What is the HCF of 3 and 24?
  30. 30.Write 6/10 in its simplest form. =
  31. 31.Write 6/21 in its simplest form. =
  32. 32.What is the HCF of 45 and 72?
  33. 33.Is 4/16 in its simplest form? (a) No (b) Yes
  34. 34.What is the HCF of 27 and 90?
  35. 35.Write 36/81 in its simplest form. =
  36. 36.Write 12/16 in its simplest form. =
  37. 37.Is 6/42 in its simplest form? (a) Yes (b) No
  38. 38.Write 21/30 in its simplest form. =
  39. 39.Write 24/40 in its simplest form. =
  40. 40.Write 10/15 in its simplest form. =

Answer key

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

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