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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 672 · 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 4/10 in its simplest form. =
  2. 2.Write 32/72 in its simplest form. =
  3. 3.What is the HCF of 45 and 54?
  4. 4.Is 15/50 in its simplest form? (a) No (b) Yes
  5. 5.Is 1/3 in its simplest form? (a) Yes (b) No
  6. 6.Write 6/27 in its simplest form. =
  7. 7.Is 4/7 in its simplest form? (a) Yes (b) No
  8. 8.Is 18/60 in its simplest form? (a) No (b) Yes
  9. 9.Is 21/30 in its simplest form? (a) Yes (b) No
  10. 10.Is 15/27 in its simplest form? (a) No (b) Yes
  11. 11.Write 8/48 in its simplest form. =
  12. 12.Write 28/36 in its simplest form. =
  13. 13.Is 1/2 in its simplest form? (a) Yes (b) No
  14. 14.Write 24/64 in its simplest form. =
  15. 15.Is 3/21 in its simplest form? (a) Yes (b) No
  16. 16.What is the HCF of 12 and 18?
  17. 17.Is 30/36 in its simplest form? (a) No (b) Yes
  18. 18.What is the HCF of 10 and 25?
  19. 19.Write 6/10 in its simplest form. =
  20. 20.Is 42/48 in its simplest form? (a) Yes (b) No
  21. 21.What is the HCF of 30 and 48?
  22. 22.Is 1/8 in its simplest form? (a) No (b) Yes
  23. 23.What is the HCF of 21 and 35?
  24. 24.Is 5/7 in its simplest form? (a) No (b) Yes
  25. 25.Write 7/63 in its simplest form. =
  26. 26.Is 45/50 in its simplest form? (a) No (b) Yes
  27. 27.Is 9/12 in its simplest form? (a) No (b) Yes
  28. 28.Write 27/36 in its simplest form. =
  29. 29.Is 4/32 in its simplest form? (a) No (b) Yes
  30. 30.Write 4/14 in its simplest form. =
  31. 31.Write 18/42 in its simplest form. =
  32. 32.What is the HCF of 6 and 30?
  33. 33.What is the HCF of 35 and 40?
  34. 34.What is the HCF of 8 and 64?
  35. 35.Is 2/7 in its simplest form? (a) No (b) Yes
  36. 36.Write 8/20 in its simplest form. =
  37. 37.Write 12/20 in its simplest form. =
  38. 38.Write 8/16 in its simplest form. =
  39. 39.Write 8/24 in its simplest form. =
  40. 40.Is 7/10 in its simplest form? (a) Yes (b) No

Answer key

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

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