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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 696 · 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 28/32 in its simplest form. =
  2. 2.Is 9/10 in its simplest form? (a) No (b) Yes
  3. 3.What is the HCF of 35 and 42?
  4. 4.Write 8/48 in its simplest form. =
  5. 5.Is 21/27 in its simplest form? (a) No (b) Yes
  6. 6.Is 1/4 in its simplest form? (a) No (b) Yes
  7. 7.Is 1/5 in its simplest form? (a) Yes (b) No
  8. 8.What is the HCF of 15 and 24?
  9. 9.Is 4/9 in its simplest form? (a) Yes (b) No
  10. 10.Write 12/20 in its simplest form. =
  11. 11.Write 5/50 in its simplest form. =
  12. 12.What is the HCF of 12 and 16?
  13. 13.Write 49/63 in its simplest form. =
  14. 14.Write 64/72 in its simplest form. =
  15. 15.Write 12/42 in its simplest form. =
  16. 16.What is the HCF of 9 and 18?
  17. 17.Write 20/28 in its simplest form. =
  18. 18.What is the HCF of 10 and 15?
  19. 19.Is 3/6 in its simplest form? (a) No (b) Yes
  20. 20.Is 3/27 in its simplest form? (a) No (b) Yes
  21. 21.Is 4/5 in its simplest form? (a) Yes (b) No
  22. 22.Write 32/56 in its simplest form. =
  23. 23.What is the HCF of 8 and 80?
  24. 24.Is 12/15 in its simplest form? (a) Yes (b) No
  25. 25.Is 1/3 in its simplest form? (a) Yes (b) No
  26. 26.Is 25/35 in its simplest form? (a) Yes (b) No
  27. 27.Is 1/9 in its simplest form? (a) No (b) Yes
  28. 28.Write 12/30 in its simplest form. =
  29. 29.Is 20/36 in its simplest form? (a) Yes (b) No
  30. 30.Write 8/20 in its simplest form. =
  31. 31.Write 15/24 in its simplest form. =
  32. 32.What is the HCF of 3 and 18?
  33. 33.What is the HCF of 20 and 36?
  34. 34.What is the HCF of 3 and 30?
  35. 35.What is the HCF of 21 and 24?
  36. 36.What is the HCF of 25 and 35?
  37. 37.What is the HCF of 81 and 90?
  38. 38.Is 4/14 in its simplest form? (a) No (b) Yes
  39. 39.What is the HCF of 12 and 14?
  40. 40.Is 6/21 in its simplest form? (a) No (b) Yes

Answer key

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

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