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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 975 · 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 6/9 in its simplest form. =
  2. 2.Write 8/10 in its simplest form. =
  3. 3.Is 12/16 in its simplest form? (a) No (b) Yes
  4. 4.What is the HCF of 8 and 40?
  5. 5.Write 18/63 in its simplest form. =
  6. 6.What is the HCF of 42 and 60?
  7. 7.Is 12/14 in its simplest form? (a) Yes (b) No
  8. 8.Write 4/14 in its simplest form. =
  9. 9.What is the HCF of 15 and 35?
  10. 10.Is 2/9 in its simplest form? (a) Yes (b) No
  11. 11.Is 8/36 in its simplest form? (a) Yes (b) No
  12. 12.Write 20/36 in its simplest form. =
  13. 13.Write 6/27 in its simplest form. =
  14. 14.Is 15/35 in its simplest form? (a) No (b) Yes
  15. 15.Is 8/14 in its simplest form? (a) Yes (b) No
  16. 16.Is 3/5 in its simplest form? (a) No (b) Yes
  17. 17.Is 16/28 in its simplest form? (a) No (b) Yes
  18. 18.What is the HCF of 6 and 10?
  19. 19.What is the HCF of 24 and 56?
  20. 20.Write 4/18 in its simplest form. =
  21. 21.Is 2/8 in its simplest form? (a) Yes (b) No
  22. 22.What is the HCF of 8 and 56?
  23. 23.Is 25/45 in its simplest form? (a) No (b) Yes
  24. 24.What is the HCF of 6 and 8?
  25. 25.Is 1/7 in its simplest form? (a) No (b) Yes
  26. 26.What is the HCF of 12 and 16?
  27. 27.What is the HCF of 14 and 63?
  28. 28.Is 9/10 in its simplest form? (a) Yes (b) No
  29. 29.Write 25/30 in its simplest form. =
  30. 30.Is 6/18 in its simplest form? (a) Yes (b) No
  31. 31.Write 14/20 in its simplest form. =
  32. 32.Write 4/36 in its simplest form. =
  33. 33.Is 24/42 in its simplest form? (a) No (b) Yes
  34. 34.What is the HCF of 8 and 36?
  35. 35.What is the HCF of 72 and 81?
  36. 36.Is 4/16 in its simplest form? (a) No (b) Yes
  37. 37.What is the HCF of 3 and 27?
  38. 38.Write 3/9 in its simplest form. =
  39. 39.Write 24/30 in its simplest form. =
  40. 40.Is 35/45 in its simplest form? (a) Yes (b) No

Answer key

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

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