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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 370 · 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 2/7 in its simplest form? (a) Yes (b) No
  2. 2.Write 21/70 in its simplest form. =
  3. 3.Write 9/27 in its simplest form. =
  4. 4.Is 4/12 in its simplest form? (a) No (b) Yes
  5. 5.Write 35/40 in its simplest form. =
  6. 6.What is the HCF of 10 and 45?
  7. 7.Write 45/54 in its simplest form. =
  8. 8.Is 6/30 in its simplest form? (a) Yes (b) No
  9. 9.Write 9/30 in its simplest form. =
  10. 10.What is the HCF of 5 and 40?
  11. 11.Write 14/20 in its simplest form. =
  12. 12.What is the HCF of 12 and 16?
  13. 13.What is the HCF of 28 and 63?
  14. 14.What is the HCF of 16 and 72?
  15. 15.Is 28/32 in its simplest form? (a) Yes (b) No
  16. 16.Write 3/9 in its simplest form. =
  17. 17.What is the HCF of 7 and 63?
  18. 18.Is 1/4 in its simplest form? (a) Yes (b) No
  19. 19.Write 35/50 in its simplest form. =
  20. 20.Write 15/35 in its simplest form. =
  21. 21.Write 5/40 in its simplest form. =
  22. 22.What is the HCF of 6 and 24?
  23. 23.Is 6/18 in its simplest form? (a) Yes (b) No
  24. 24.Write 18/81 in its simplest form. =
  25. 25.Is 30/35 in its simplest form? (a) No (b) Yes
  26. 26.Is 1/9 in its simplest form? (a) Yes (b) No
  27. 27.Write 27/90 in its simplest form. =
  28. 28.Is 7/10 in its simplest form? (a) No (b) Yes
  29. 29.Write 2/10 in its simplest form. =
  30. 30.Is 6/10 in its simplest form? (a) Yes (b) No
  31. 31.Write 36/81 in its simplest form. =
  32. 32.Is 6/21 in its simplest form? (a) No (b) Yes
  33. 33.Is 21/24 in its simplest form? (a) Yes (b) No
  34. 34.What is the HCF of 16 and 40?
  35. 35.Write 24/56 in its simplest form. =
  36. 36.What is the HCF of 20 and 24?
  37. 37.Write 9/36 in its simplest form. =
  38. 38.Write 36/45 in its simplest form. =
  39. 39.Is 1/3 in its simplest form? (a) No (b) Yes
  40. 40.What is the HCF of 6 and 9?

Answer key

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

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