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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 156 · 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 48/56 in its simplest form. =
  2. 2.Write 30/54 in its simplest form. =
  3. 3.Write 24/42 in its simplest form. =
  4. 4.What is the HCF of 6 and 60?
  5. 5.Write 5/20 in its simplest form. =
  6. 6.Is 1/5 in its simplest form? (a) Yes (b) No
  7. 7.Is 3/24 in its simplest form? (a) Yes (b) No
  8. 8.What is the HCF of 16 and 24?
  9. 9.Is 8/10 in its simplest form? (a) No (b) Yes
  10. 10.What is the HCF of 4 and 14?
  11. 11.What is the HCF of 6 and 12?
  12. 12.What is the HCF of 12 and 16?
  13. 13.Is 3/5 in its simplest form? (a) No (b) Yes
  14. 14.Is 1/6 in its simplest form? (a) Yes (b) No
  15. 15.Write 42/54 in its simplest form. =
  16. 16.What is the HCF of 12 and 40?
  17. 17.Is 6/7 in its simplest form? (a) Yes (b) No
  18. 18.Is 18/48 in its simplest form? (a) No (b) Yes
  19. 19.What is the HCF of 12 and 15?
  20. 20.Write 63/90 in its simplest form. =
  21. 21.What is the HCF of 35 and 63?
  22. 22.What is the HCF of 6 and 18?
  23. 23.Write 36/40 in its simplest form. =
  24. 24.Write 4/24 in its simplest form. =
  25. 25.What is the HCF of 28 and 49?
  26. 26.Write 2/12 in its simplest form. =
  27. 27.What is the HCF of 15 and 20?
  28. 28.Is 15/27 in its simplest form? (a) Yes (b) No
  29. 29.What is the HCF of 10 and 18?
  30. 30.Write 45/72 in its simplest form. =
  31. 31.Write 10/12 in its simplest form. =
  32. 32.Write 14/16 in its simplest form. =
  33. 33.What is the HCF of 25 and 30?
  34. 34.Is 4/32 in its simplest form? (a) Yes (b) No
  35. 35.Is 21/24 in its simplest form? (a) No (b) Yes
  36. 36.Is 9/12 in its simplest form? (a) Yes (b) No
  37. 37.Is 20/36 in its simplest form? (a) Yes (b) No
  38. 38.What is the HCF of 7 and 35?
  39. 39.Write 3/30 in its simplest form. =
  40. 40.Is 6/24 in its simplest form? (a) No (b) Yes

Answer key

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

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