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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 490 · 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.Is 3/5 in its simplest form? (a) No (b) Yes
  2. 2.Is 3/24 in its simplest form? (a) Yes (b) No
  3. 3.Write 7/28 in its simplest form. =
  4. 4.What is the HCF of 6 and 9?
  5. 5.What is the HCF of 25 and 45?
  6. 6.Write 14/20 in its simplest form. =
  7. 7.What is the HCF of 2 and 6?
  8. 8.Is 4/7 in its simplest form? (a) No (b) Yes
  9. 9.Is 1/6 in its simplest form? (a) No (b) Yes
  10. 10.Write 15/20 in its simplest form. =
  11. 11.What is the HCF of 16 and 56?
  12. 12.Is 8/9 in its simplest form? (a) Yes (b) No
  13. 13.What is the HCF of 4 and 10?
  14. 14.What is the HCF of 9 and 45?
  15. 15.What is the HCF of 7 and 14?
  16. 16.Write 56/80 in its simplest form. =
  17. 17.Write 6/9 in its simplest form. =
  18. 18.Is 6/12 in its simplest form? (a) No (b) Yes
  19. 19.Is 1/2 in its simplest form? (a) No (b) Yes
  20. 20.Is 4/20 in its simplest form? (a) No (b) Yes
  21. 21.What is the HCF of 6 and 21?
  22. 22.Is 2/3 in its simplest form? (a) No (b) Yes
  23. 23.Write 16/20 in its simplest form. =
  24. 24.Write 10/14 in its simplest form. =
  25. 25.What is the HCF of 81 and 90?
  26. 26.What is the HCF of 42 and 60?
  27. 27.Write 7/14 in its simplest form. =
  28. 28.Write 21/27 in its simplest form. =
  29. 29.Write 48/54 in its simplest form. =
  30. 30.Is 3/4 in its simplest form? (a) No (b) Yes
  31. 31.Write 2/6 in its simplest form. =
  32. 32.What is the HCF of 12 and 18?
  33. 33.Write 6/8 in its simplest form. =
  34. 34.Write 63/90 in its simplest form. =
  35. 35.Is 1/7 in its simplest form? (a) No (b) Yes
  36. 36.Write 18/21 in its simplest form. =
  37. 37.Write 28/63 in its simplest form. =
  38. 38.Is 1/8 in its simplest form? (a) No (b) Yes
  39. 39.What is the HCF of 14 and 21?
  40. 40.Is 5/35 in its simplest form? (a) Yes (b) No

Answer key

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

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