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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 58 · 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 4/16 in its simplest form. =
  2. 2.Write 9/63 in its simplest form. =
  3. 3.What is the HCF of 5 and 15?
  4. 4.What is the HCF of 15 and 20?
  5. 5.What is the HCF of 63 and 81?
  6. 6.Write 35/50 in its simplest form. =
  7. 7.What is the HCF of 4 and 36?
  8. 8.What is the HCF of 9 and 21?
  9. 9.Is 4/16 in its simplest form? (a) Yes (b) No
  10. 10.Write 35/40 in its simplest form. =
  11. 11.Write 6/42 in its simplest form. =
  12. 12.Write 12/16 in its simplest form. =
  13. 13.Write 24/64 in its simplest form. =
  14. 14.Write 14/16 in its simplest form. =
  15. 15.Write 35/42 in its simplest form. =
  16. 16.Write 32/56 in its simplest form. =
  17. 17.Write 21/27 in its simplest form. =
  18. 18.Write 8/20 in its simplest form. =
  19. 19.What is the HCF of 2 and 10?
  20. 20.Write 21/49 in its simplest form. =
  21. 21.Is 14/18 in its simplest form? (a) Yes (b) No
  22. 22.What is the HCF of 9 and 36?
  23. 23.Is 14/20 in its simplest form? (a) Yes (b) No
  24. 24.What is the HCF of 4 and 18?
  25. 25.What is the HCF of 6 and 27?
  26. 26.Write 6/20 in its simplest form. =
  27. 27.What is the HCF of 8 and 56?
  28. 28.Write 15/27 in its simplest form. =
  29. 29.What is the HCF of 10 and 15?
  30. 30.Is 12/18 in its simplest form? (a) No (b) Yes
  31. 31.Write 14/20 in its simplest form. =
  32. 32.What is the HCF of 6 and 21?
  33. 33.What is the HCF of 27 and 90?
  34. 34.What is the HCF of 5 and 50?
  35. 35.What is the HCF of 14 and 16?
  36. 36.Is 10/25 in its simplest form? (a) Yes (b) No
  37. 37.Write 4/12 in its simplest form. =
  38. 38.Is 7/8 in its simplest form? (a) Yes (b) No
  39. 39.Write 49/56 in its simplest form. =
  40. 40.Write 24/30 in its simplest form. =

Answer key

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

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