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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 196 · 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 8/36 in its simplest form. =
  2. 2.Write 24/56 in its simplest form. =
  3. 3.Is 12/32 in its simplest form? (a) No (b) Yes
  4. 4.Write 10/15 in its simplest form. =
  5. 5.Write 4/20 in its simplest form. =
  6. 6.What is the HCF of 35 and 63?
  7. 7.What is the HCF of 12 and 18?
  8. 8.Write 3/27 in its simplest form. =
  9. 9.What is the HCF of 3 and 21?
  10. 10.Write 28/35 in its simplest form. =
  11. 11.What is the HCF of 16 and 24?
  12. 12.What is the HCF of 35 and 40?
  13. 13.What is the HCF of 3 and 15?
  14. 14.Is 1/8 in its simplest form? (a) No (b) Yes
  15. 15.What is the HCF of 18 and 21?
  16. 16.What is the HCF of 6 and 30?
  17. 17.What is the HCF of 4 and 6?
  18. 18.What is the HCF of 14 and 16?
  19. 19.Write 20/25 in its simplest form. =
  20. 20.What is the HCF of 7 and 28?
  21. 21.Is 10/18 in its simplest form? (a) No (b) Yes
  22. 22.What is the HCF of 45 and 81?
  23. 23.Is 12/27 in its simplest form? (a) No (b) Yes
  24. 24.Write 12/14 in its simplest form. =
  25. 25.What is the HCF of 8 and 36?
  26. 26.Write 45/50 in its simplest form. =
  27. 27.What is the HCF of 8 and 10?
  28. 28.Write 21/30 in its simplest form. =
  29. 29.Is 8/20 in its simplest form? (a) No (b) Yes
  30. 30.What is the HCF of 18 and 20?
  31. 31.Write 28/32 in its simplest form. =
  32. 32.What is the HCF of 6 and 54?
  33. 33.Write 24/40 in its simplest form. =
  34. 34.What is the HCF of 4 and 18?
  35. 35.Write 5/25 in its simplest form. =
  36. 36.Is 3/24 in its simplest form? (a) No (b) Yes
  37. 37.Write 4/28 in its simplest form. =
  38. 38.Is 6/42 in its simplest form? (a) No (b) Yes
  39. 39.Write 7/21 in its simplest form. =
  40. 40.Is 18/21 in its simplest form? (a) No (b) Yes

Answer key

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

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