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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 950 · 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 9/30 in its simplest form. =
  2. 2.Write 9/15 in its simplest form. =
  3. 3.Is 3/8 in its simplest form? (a) No (b) Yes
  4. 4.Is 4/36 in its simplest form? (a) Yes (b) No
  5. 5.Is 18/42 in its simplest form? (a) No (b) Yes
  6. 6.Write 4/14 in its simplest form. =
  7. 7.Write 8/72 in its simplest form. =
  8. 8.Write 14/49 in its simplest form. =
  9. 9.Is 10/25 in its simplest form? (a) No (b) Yes
  10. 10.Is 42/54 in its simplest form? (a) No (b) Yes
  11. 11.What is the HCF of 63 and 72?
  12. 12.Write 32/56 in its simplest form. =
  13. 13.Write 18/21 in its simplest form. =
  14. 14.What is the HCF of 30 and 54?
  15. 15.Is 9/15 in its simplest form? (a) No (b) Yes
  16. 16.What is the HCF of 21 and 24?
  17. 17.Is 4/16 in its simplest form? (a) No (b) Yes
  18. 18.What is the HCF of 12 and 18?
  19. 19.Is 5/8 in its simplest form? (a) No (b) Yes
  20. 20.Write 21/35 in its simplest form. =
  21. 21.Is 6/48 in its simplest form? (a) Yes (b) No
  22. 22.Write 35/50 in its simplest form. =
  23. 23.Write 6/10 in its simplest form. =
  24. 24.Write 10/16 in its simplest form. =
  25. 25.Write 8/28 in its simplest form. =
  26. 26.What is the HCF of 10 and 14?
  27. 27.What is the HCF of 8 and 64?
  28. 28.Is 21/24 in its simplest form? (a) Yes (b) No
  29. 29.Write 20/25 in its simplest form. =
  30. 30.What is the HCF of 6 and 8?
  31. 31.Is 2/10 in its simplest form? (a) Yes (b) No
  32. 32.Write 24/40 in its simplest form. =
  33. 33.What is the HCF of 45 and 50?
  34. 34.Write 16/72 in its simplest form. =
  35. 35.What is the HCF of 54 and 60?
  36. 36.Is 16/18 in its simplest form? (a) No (b) Yes
  37. 37.Is 2/5 in its simplest form? (a) Yes (b) No
  38. 38.Write 6/36 in its simplest form. =
  39. 39.Write 7/49 in its simplest form. =
  40. 40.Is 2/6 in its simplest form? (a) No (b) Yes

Answer key

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

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