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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 763 · 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 14 and 35?
  2. 2.Write 9/90 in its simplest form. =
  3. 3.Write 20/36 in its simplest form. =
  4. 4.Is 8/14 in its simplest form? (a) Yes (b) No
  5. 5.Write 5/45 in its simplest form. =
  6. 6.Write 42/49 in its simplest form. =
  7. 7.Is 14/20 in its simplest form? (a) No (b) Yes
  8. 8.Write 7/49 in its simplest form. =
  9. 9.What is the HCF of 28 and 35?
  10. 10.Write 48/56 in its simplest form. =
  11. 11.Write 6/10 in its simplest form. =
  12. 12.Is 4/14 in its simplest form? (a) No (b) Yes
  13. 13.What is the HCF of 8 and 16?
  14. 14.Write 18/24 in its simplest form. =
  15. 15.Write 8/10 in its simplest form. =
  16. 16.What is the HCF of 30 and 48?
  17. 17.What is the HCF of 18 and 30?
  18. 18.Is 12/40 in its simplest form? (a) No (b) Yes
  19. 19.Write 40/64 in its simplest form. =
  20. 20.Is 6/30 in its simplest form? (a) No (b) Yes
  21. 21.Write 63/81 in its simplest form. =
  22. 22.Write 48/54 in its simplest form. =
  23. 23.Write 12/30 in its simplest form. =
  24. 24.What is the HCF of 14 and 18?
  25. 25.Is 1/5 in its simplest form? (a) No (b) Yes
  26. 26.Write 8/32 in its simplest form. =
  27. 27.Write 15/21 in its simplest form. =
  28. 28.What is the HCF of 6 and 15?
  29. 29.Write 56/64 in its simplest form. =
  30. 30.Write 14/16 in its simplest form. =
  31. 31.Write 30/48 in its simplest form. =
  32. 32.Write 18/48 in its simplest form. =
  33. 33.Write 4/16 in its simplest form. =
  34. 34.Is 3/7 in its simplest form? (a) No (b) Yes
  35. 35.What is the HCF of 30 and 42?
  36. 36.Write 3/21 in its simplest form. =
  37. 37.Is 5/8 in its simplest form? (a) Yes (b) No
  38. 38.Write 12/28 in its simplest form. =
  39. 39.Is 2/5 in its simplest form? (a) Yes (b) No
  40. 40.Is 2/3 in its simplest form? (a) Yes (b) No

Answer key

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

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