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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 55 · 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 8/14 in its simplest form. =
  2. 2.What is the HCF of 8 and 36?
  3. 3.Is 1/7 in its simplest form? (a) No (b) Yes
  4. 4.Is 5/6 in its simplest form? (a) Yes (b) No
  5. 5.Write 8/20 in its simplest form. =
  6. 6.Is 1/2 in its simplest form? (a) No (b) Yes
  7. 7.Write 2/14 in its simplest form. =
  8. 8.Is 15/50 in its simplest form? (a) Yes (b) No
  9. 9.Is 1/3 in its simplest form? (a) Yes (b) No
  10. 10.Is 21/24 in its simplest form? (a) Yes (b) No
  11. 11.Write 5/40 in its simplest form. =
  12. 12.Is 24/42 in its simplest form? (a) Yes (b) No
  13. 13.Is 12/16 in its simplest form? (a) No (b) Yes
  14. 14.What is the HCF of 3 and 30?
  15. 15.What is the HCF of 27 and 45?
  16. 16.What is the HCF of 16 and 20?
  17. 17.Write 28/63 in its simplest form. =
  18. 18.Is 3/7 in its simplest form? (a) No (b) Yes
  19. 19.Is 1/5 in its simplest form? (a) No (b) Yes
  20. 20.What is the HCF of 7 and 56?
  21. 21.Is 2/16 in its simplest form? (a) No (b) Yes
  22. 22.Is 6/24 in its simplest form? (a) Yes (b) No
  23. 23.Write 28/36 in its simplest form. =
  24. 24.Write 21/28 in its simplest form. =
  25. 25.What is the HCF of 16 and 40?
  26. 26.Write 15/25 in its simplest form. =
  27. 27.Write 20/25 in its simplest form. =
  28. 28.Write 14/35 in its simplest form. =
  29. 29.Is 8/18 in its simplest form? (a) No (b) Yes
  30. 30.What is the HCF of 14 and 18?
  31. 31.Write 3/15 in its simplest form. =
  32. 32.What is the HCF of 42 and 49?
  33. 33.Write 9/54 in its simplest form. =
  34. 34.Is 2/5 in its simplest form? (a) Yes (b) No
  35. 35.What is the HCF of 24 and 40?
  36. 36.Write 10/15 in its simplest form. =
  37. 37.Is 5/35 in its simplest form? (a) Yes (b) No
  38. 38.What is the HCF of 21 and 49?
  39. 39.Write 8/32 in its simplest form. =
  40. 40.What is the HCF of 8 and 48?

Answer key

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

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