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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 355 · 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 28/35 in its simplest form. =
  2. 2.Write 2/20 in its simplest form. =
  3. 3.Is 6/9 in its simplest form? (a) No (b) Yes
  4. 4.Is 10/18 in its simplest form? (a) No (b) Yes
  5. 5.Is 4/28 in its simplest form? (a) Yes (b) No
  6. 6.Is 2/3 in its simplest form? (a) Yes (b) No
  7. 7.What is the HCF of 64 and 72?
  8. 8.What is the HCF of 3 and 18?
  9. 9.Write 24/32 in its simplest form. =
  10. 10.Write 8/24 in its simplest form. =
  11. 11.Write 21/49 in its simplest form. =
  12. 12.Is 4/16 in its simplest form? (a) Yes (b) No
  13. 13.Is 40/45 in its simplest form? (a) No (b) Yes
  14. 14.Write 35/40 in its simplest form. =
  15. 15.Write 9/27 in its simplest form. =
  16. 16.Is 2/6 in its simplest form? (a) Yes (b) No
  17. 17.Is 3/4 in its simplest form? (a) Yes (b) No
  18. 18.Write 25/40 in its simplest form. =
  19. 19.Is 2/4 in its simplest form? (a) No (b) Yes
  20. 20.Is 24/28 in its simplest form? (a) Yes (b) No
  21. 21.Write 21/27 in its simplest form. =
  22. 22.Is 24/42 in its simplest form? (a) No (b) Yes
  23. 23.What is the HCF of 12 and 20?
  24. 24.What is the HCF of 3 and 27?
  25. 25.Write 36/63 in its simplest form. =
  26. 26.Is 30/48 in its simplest form? (a) No (b) Yes
  27. 27.Write 14/35 in its simplest form. =
  28. 28.What is the HCF of 6 and 20?
  29. 29.Is 14/20 in its simplest form? (a) No (b) Yes
  30. 30.What is the HCF of 14 and 20?
  31. 31.Is 9/10 in its simplest form? (a) Yes (b) No
  32. 32.What is the HCF of 12 and 21?
  33. 33.Write 54/63 in its simplest form. =
  34. 34.What is the HCF of 8 and 36?
  35. 35.Is 3/5 in its simplest form? (a) Yes (b) No
  36. 36.Is 6/14 in its simplest form? (a) No (b) Yes
  37. 37.Write 15/25 in its simplest form. =
  38. 38.What is the HCF of 21 and 28?
  39. 39.Write 8/16 in its simplest form. =
  40. 40.Is 2/18 in its simplest form? (a) No (b) Yes

Answer key

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

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