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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 357 · 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 2/10 in its simplest form. =
  2. 2.Is 1/10 in its simplest form? (a) No (b) Yes
  3. 3.Write 32/56 in its simplest form. =
  4. 4.What is the HCF of 2 and 16?
  5. 5.Write 15/24 in its simplest form. =
  6. 6.Write 4/16 in its simplest form. =
  7. 7.What is the HCF of 56 and 72?
  8. 8.Write 45/50 in its simplest form. =
  9. 9.Is 5/30 in its simplest form? (a) No (b) Yes
  10. 10.Is 6/16 in its simplest form? (a) Yes (b) No
  11. 11.Is 25/45 in its simplest form? (a) Yes (b) No
  12. 12.Write 14/16 in its simplest form. =
  13. 13.Is 10/14 in its simplest form? (a) Yes (b) No
  14. 14.Is 12/42 in its simplest form? (a) Yes (b) No
  15. 15.Is 6/18 in its simplest form? (a) No (b) Yes
  16. 16.What is the HCF of 28 and 40?
  17. 17.What is the HCF of 48 and 54?
  18. 18.What is the HCF of 45 and 50?
  19. 19.Is 5/9 in its simplest form? (a) No (b) Yes
  20. 20.What is the HCF of 40 and 56?
  21. 21.Write 42/48 in its simplest form. =
  22. 22.Write 15/25 in its simplest form. =
  23. 23.What is the HCF of 28 and 35?
  24. 24.Write 15/18 in its simplest form. =
  25. 25.Write 8/18 in its simplest form. =
  26. 26.Write 15/20 in its simplest form. =
  27. 27.What is the HCF of 8 and 20?
  28. 28.Write 81/90 in its simplest form. =
  29. 29.Write 30/48 in its simplest form. =
  30. 30.What is the HCF of 15 and 25?
  31. 31.Write 36/45 in its simplest form. =
  32. 32.Write 14/21 in its simplest form. =
  33. 33.Is 4/18 in its simplest form? (a) Yes (b) No
  34. 34.Is 15/40 in its simplest form? (a) Yes (b) No
  35. 35.Is 2/6 in its simplest form? (a) No (b) Yes
  36. 36.What is the HCF of 18 and 20?
  37. 37.What is the HCF of 42 and 60?
  38. 38.What is the HCF of 16 and 20?
  39. 39.Write 18/27 in its simplest form. =
  40. 40.Is 5/10 in its simplest form? (a) No (b) Yes

Answer key

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

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