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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 182 · 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 1/3 in its simplest form? (a) Yes (b) No
  2. 2.What is the HCF of 63 and 72?
  3. 3.What is the HCF of 9 and 15?
  4. 4.Is 6/8 in its simplest form? (a) Yes (b) No
  5. 5.Write 40/72 in its simplest form. =
  6. 6.Is 12/42 in its simplest form? (a) No (b) Yes
  7. 7.Write 7/21 in its simplest form. =
  8. 8.Is 2/7 in its simplest form? (a) Yes (b) No
  9. 9.What is the HCF of 9 and 30?
  10. 10.What is the HCF of 21 and 35?
  11. 11.Write 10/15 in its simplest form. =
  12. 12.What is the HCF of 15 and 35?
  13. 13.Write 8/36 in its simplest form. =
  14. 14.Is 3/18 in its simplest form? (a) No (b) Yes
  15. 15.What is the HCF of 25 and 40?
  16. 16.Write 12/40 in its simplest form. =
  17. 17.Is 3/4 in its simplest form? (a) Yes (b) No
  18. 18.What is the HCF of 28 and 36?
  19. 19.Is 3/10 in its simplest form? (a) No (b) Yes
  20. 20.Is 9/24 in its simplest form? (a) No (b) Yes
  21. 21.Write 24/56 in its simplest form. =
  22. 22.Is 1/5 in its simplest form? (a) No (b) Yes
  23. 23.Is 2/9 in its simplest form? (a) No (b) Yes
  24. 24.What is the HCF of 4 and 14?
  25. 25.Write 2/20 in its simplest form. =
  26. 26.Write 56/72 in its simplest form. =
  27. 27.What is the HCF of 9 and 81?
  28. 28.Write 20/45 in its simplest form. =
  29. 29.Write 6/36 in its simplest form. =
  30. 30.Write 64/72 in its simplest form. =
  31. 31.Write 28/63 in its simplest form. =
  32. 32.Is 1/8 in its simplest form? (a) No (b) Yes
  33. 33.Is 4/5 in its simplest form? (a) No (b) Yes
  34. 34.Write 42/48 in its simplest form. =
  35. 35.Write 28/35 in its simplest form. =
  36. 36.Write 32/56 in its simplest form. =
  37. 37.Is 30/36 in its simplest form? (a) Yes (b) No
  38. 38.Is 7/9 in its simplest form? (a) No (b) Yes
  39. 39.What is the HCF of 2 and 18?
  40. 40.Is 4/7 in its simplest form? (a) No (b) Yes

Answer key

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

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