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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 673 · 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 16/72 in its simplest form. =
  2. 2.What is the HCF of 2 and 8?
  3. 3.Is 4/9 in its simplest form? (a) No (b) Yes
  4. 4.Is 2/9 in its simplest form? (a) Yes (b) No
  5. 5.Is 6/30 in its simplest form? (a) Yes (b) No
  6. 6.Write 27/45 in its simplest form. =
  7. 7.Is 6/36 in its simplest form? (a) Yes (b) No
  8. 8.Is 5/15 in its simplest form? (a) No (b) Yes
  9. 9.Is 5/9 in its simplest form? (a) No (b) Yes
  10. 10.Is 3/10 in its simplest form? (a) Yes (b) No
  11. 11.Is 1/4 in its simplest form? (a) Yes (b) No
  12. 12.Write 28/35 in its simplest form. =
  13. 13.Write 25/40 in its simplest form. =
  14. 14.Write 6/60 in its simplest form. =
  15. 15.Is 1/5 in its simplest form? (a) No (b) Yes
  16. 16.What is the HCF of 12 and 14?
  17. 17.What is the HCF of 28 and 36?
  18. 18.What is the HCF of 5 and 45?
  19. 19.Is 14/16 in its simplest form? (a) No (b) Yes
  20. 20.What is the HCF of 35 and 56?
  21. 21.Is 2/5 in its simplest form? (a) Yes (b) No
  22. 22.What is the HCF of 16 and 18?
  23. 23.Write 8/48 in its simplest form. =
  24. 24.Is 9/10 in its simplest form? (a) No (b) Yes
  25. 25.What is the HCF of 18 and 27?
  26. 26.What is the HCF of 14 and 20?
  27. 27.Write 28/49 in its simplest form. =
  28. 28.What is the HCF of 7 and 42?
  29. 29.Is 6/15 in its simplest form? (a) Yes (b) No
  30. 30.Is 15/21 in its simplest form? (a) Yes (b) No
  31. 31.Write 49/56 in its simplest form. =
  32. 32.Write 18/63 in its simplest form. =
  33. 33.Write 63/90 in its simplest form. =
  34. 34.What is the HCF of 14 and 18?
  35. 35.What is the HCF of 14 and 16?
  36. 36.What is the HCF of 18 and 63?
  37. 37.Write 6/18 in its simplest form. =
  38. 38.Is 12/15 in its simplest form? (a) Yes (b) No
  39. 39.Write 9/54 in its simplest form. =
  40. 40.What is the HCF of 2 and 16?

Answer key

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

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