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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 318 · 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 4/9 in its simplest form? (a) No (b) Yes
  2. 2.Write 15/25 in its simplest form. =
  3. 3.Is 1/6 in its simplest form? (a) No (b) Yes
  4. 4.Write 7/56 in its simplest form. =
  5. 5.Write 15/20 in its simplest form. =
  6. 6.Write 3/21 in its simplest form. =
  7. 7.What is the HCF of 18 and 60?
  8. 8.What is the HCF of 6 and 14?
  9. 9.Write 10/12 in its simplest form. =
  10. 10.Is 7/10 in its simplest form? (a) No (b) Yes
  11. 11.Is 12/32 in its simplest form? (a) Yes (b) No
  12. 12.Is 1/10 in its simplest form? (a) No (b) Yes
  13. 13.Is 8/20 in its simplest form? (a) Yes (b) No
  14. 14.Is 45/50 in its simplest form? (a) No (b) Yes
  15. 15.Write 5/50 in its simplest form. =
  16. 16.What is the HCF of 35 and 45?
  17. 17.Write 45/50 in its simplest form. =
  18. 18.Is 3/5 in its simplest form? (a) No (b) Yes
  19. 19.What is the HCF of 9 and 27?
  20. 20.What is the HCF of 16 and 18?
  21. 21.Write 48/54 in its simplest form. =
  22. 22.Is 8/9 in its simplest form? (a) Yes (b) No
  23. 23.Is 36/40 in its simplest form? (a) Yes (b) No
  24. 24.What is the HCF of 63 and 90?
  25. 25.Is 18/48 in its simplest form? (a) Yes (b) No
  26. 26.What is the HCF of 30 and 36?
  27. 27.Is 12/40 in its simplest form? (a) Yes (b) No
  28. 28.Is 3/15 in its simplest form? (a) No (b) Yes
  29. 29.Is 4/5 in its simplest form? (a) Yes (b) No
  30. 30.Is 21/30 in its simplest form? (a) Yes (b) No
  31. 31.What is the HCF of 6 and 8?
  32. 32.Is 12/27 in its simplest form? (a) No (b) Yes
  33. 33.Write 24/64 in its simplest form. =
  34. 34.What is the HCF of 4 and 14?
  35. 35.Write 7/28 in its simplest form. =
  36. 36.What is the HCF of 14 and 18?
  37. 37.Is 6/36 in its simplest form? (a) No (b) Yes
  38. 38.Write 10/35 in its simplest form. =
  39. 39.Write 16/36 in its simplest form. =
  40. 40.Write 2/16 in its simplest form. =

Answer key

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

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