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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 682 · 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 28/35 in its simplest form. =
  2. 2.Is 25/40 in its simplest form? (a) No (b) Yes
  3. 3.Is 1/3 in its simplest form? (a) No (b) Yes
  4. 4.Is 21/30 in its simplest form? (a) No (b) Yes
  5. 5.Is 20/28 in its simplest form? (a) No (b) Yes
  6. 6.Is 2/5 in its simplest form? (a) Yes (b) No
  7. 7.What is the HCF of 9 and 90?
  8. 8.What is the HCF of 56 and 64?
  9. 9.Write 24/32 in its simplest form. =
  10. 10.Is 16/36 in its simplest form? (a) Yes (b) No
  11. 11.Is 4/16 in its simplest form? (a) Yes (b) No
  12. 12.Write 49/70 in its simplest form. =
  13. 13.Is 3/5 in its simplest form? (a) Yes (b) No
  14. 14.Is 15/20 in its simplest form? (a) Yes (b) No
  15. 15.What is the HCF of 35 and 63?
  16. 16.What is the HCF of 2 and 18?
  17. 17.Write 35/45 in its simplest form. =
  18. 18.What is the HCF of 15 and 25?
  19. 19.Write 24/28 in its simplest form. =
  20. 20.Is 5/7 in its simplest form? (a) Yes (b) No
  21. 21.What is the HCF of 18 and 27?
  22. 22.Write 45/54 in its simplest form. =
  23. 23.What is the HCF of 48 and 54?
  24. 24.Is 2/8 in its simplest form? (a) Yes (b) No
  25. 25.Write 28/63 in its simplest form. =
  26. 26.Write 36/45 in its simplest form. =
  27. 27.Is 8/10 in its simplest form? (a) Yes (b) No
  28. 28.Is 12/40 in its simplest form? (a) No (b) Yes
  29. 29.Is 1/6 in its simplest form? (a) Yes (b) No
  30. 30.What is the HCF of 45 and 54?
  31. 31.Write 24/64 in its simplest form. =
  32. 32.What is the HCF of 72 and 80?
  33. 33.What is the HCF of 4 and 36?
  34. 34.Write 9/63 in its simplest form. =
  35. 35.Write 2/12 in its simplest form. =
  36. 36.Write 6/42 in its simplest form. =
  37. 37.What is the HCF of 2 and 12?
  38. 38.Write 16/36 in its simplest form. =
  39. 39.Write 18/48 in its simplest form. =
  40. 40.What is the HCF of 10 and 12?

Answer key

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

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