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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 333 · 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 12/32 in its simplest form? (a) No (b) Yes
  2. 2.Is 3/10 in its simplest form? (a) No (b) Yes
  3. 3.Write 42/49 in its simplest form. =
  4. 4.Is 1/2 in its simplest form? (a) No (b) Yes
  5. 5.Write 18/81 in its simplest form. =
  6. 6.What is the HCF of 9 and 12?
  7. 7.Write 6/9 in its simplest form. =
  8. 8.Write 20/24 in its simplest form. =
  9. 9.Write 20/45 in its simplest form. =
  10. 10.Is 7/8 in its simplest form? (a) No (b) Yes
  11. 11.Write 56/72 in its simplest form. =
  12. 12.Write 9/12 in its simplest form. =
  13. 13.What is the HCF of 9 and 24?
  14. 14.Is 24/30 in its simplest form? (a) Yes (b) No
  15. 15.What is the HCF of 28 and 32?
  16. 16.Is 24/42 in its simplest form? (a) Yes (b) No
  17. 17.Is 3/7 in its simplest form? (a) Yes (b) No
  18. 18.Write 2/20 in its simplest form. =
  19. 19.Write 16/28 in its simplest form. =
  20. 20.Is 9/24 in its simplest form? (a) No (b) Yes
  21. 21.What is the HCF of 7 and 14?
  22. 22.What is the HCF of 7 and 70?
  23. 23.Write 42/54 in its simplest form. =
  24. 24.What is the HCF of 6 and 42?
  25. 25.Is 4/9 in its simplest form? (a) No (b) Yes
  26. 26.Is 3/8 in its simplest form? (a) Yes (b) No
  27. 27.Is 5/6 in its simplest form? (a) Yes (b) No
  28. 28.Write 12/40 in its simplest form. =
  29. 29.Write 8/40 in its simplest form. =
  30. 30.Is 36/40 in its simplest form? (a) Yes (b) No
  31. 31.What is the HCF of 63 and 90?
  32. 32.Is 2/3 in its simplest form? (a) No (b) Yes
  33. 33.Is 1/6 in its simplest form? (a) Yes (b) No
  34. 34.Write 8/10 in its simplest form. =
  35. 35.Write 18/63 in its simplest form. =
  36. 36.Is 30/54 in its simplest form? (a) Yes (b) No
  37. 37.What is the HCF of 9 and 36?
  38. 38.What is the HCF of 81 and 90?
  39. 39.Is 6/12 in its simplest form? (a) No (b) Yes
  40. 40.What is the HCF of 18 and 27?

Answer key

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

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