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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 666 · 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 6/8 in its simplest form. =
  2. 2.Write 8/16 in its simplest form. =
  3. 3.Write 12/40 in its simplest form. =
  4. 4.Is 2/7 in its simplest form? (a) No (b) Yes
  5. 5.Is 15/35 in its simplest form? (a) No (b) Yes
  6. 6.What is the HCF of 2 and 18?
  7. 7.Write 6/10 in its simplest form. =
  8. 8.Write 21/27 in its simplest form. =
  9. 9.What is the HCF of 3 and 27?
  10. 10.Is 3/12 in its simplest form? (a) No (b) Yes
  11. 11.Write 8/10 in its simplest form. =
  12. 12.Write 3/21 in its simplest form. =
  13. 13.What is the HCF of 9 and 21?
  14. 14.What is the HCF of 30 and 35?
  15. 15.Write 42/60 in its simplest form. =
  16. 16.What is the HCF of 56 and 63?
  17. 17.Write 2/12 in its simplest form. =
  18. 18.What is the HCF of 48 and 56?
  19. 19.Write 20/24 in its simplest form. =
  20. 20.Is 3/5 in its simplest form? (a) No (b) Yes
  21. 21.Write 20/45 in its simplest form. =
  22. 22.Is 5/10 in its simplest form? (a) Yes (b) No
  23. 23.Write 3/9 in its simplest form. =
  24. 24.Write 40/72 in its simplest form. =
  25. 25.What is the HCF of 8 and 72?
  26. 26.Write 4/12 in its simplest form. =
  27. 27.Is 7/9 in its simplest form? (a) No (b) Yes
  28. 28.Is 1/10 in its simplest form? (a) No (b) Yes
  29. 29.Write 12/15 in its simplest form. =
  30. 30.What is the HCF of 12 and 18?
  31. 31.Is 6/9 in its simplest form? (a) No (b) Yes
  32. 32.What is the HCF of 24 and 30?
  33. 33.Is 2/3 in its simplest form? (a) Yes (b) No
  34. 34.Is 5/9 in its simplest form? (a) Yes (b) No
  35. 35.What is the HCF of 40 and 72?
  36. 36.Is 7/10 in its simplest form? (a) Yes (b) No
  37. 37.What is the HCF of 4 and 16?
  38. 38.Write 10/25 in its simplest form. =
  39. 39.Is 4/32 in its simplest form? (a) No (b) Yes
  40. 40.Is 4/9 in its simplest form? (a) Yes (b) No

Answer key

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

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