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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 117 · 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.What is the HCF of 15 and 35?
  2. 2.Is 5/6 in its simplest form? (a) Yes (b) No
  3. 3.What is the HCF of 14 and 49?
  4. 4.Is 9/24 in its simplest form? (a) Yes (b) No
  5. 5.Write 8/24 in its simplest form. =
  6. 6.Is 9/10 in its simplest form? (a) Yes (b) No
  7. 7.Write 10/12 in its simplest form. =
  8. 8.Write 6/54 in its simplest form. =
  9. 9.What is the HCF of 42 and 49?
  10. 10.Write 18/20 in its simplest form. =
  11. 11.Is 8/14 in its simplest form? (a) No (b) Yes
  12. 12.Is 35/45 in its simplest form? (a) Yes (b) No
  13. 13.What is the HCF of 14 and 35?
  14. 14.Is 2/3 in its simplest form? (a) No (b) Yes
  15. 15.Is 6/54 in its simplest form? (a) No (b) Yes
  16. 16.Is 2/18 in its simplest form? (a) No (b) Yes
  17. 17.What is the HCF of 8 and 14?
  18. 18.Is 1/9 in its simplest form? (a) No (b) Yes
  19. 19.Write 7/63 in its simplest form. =
  20. 20.Is 8/9 in its simplest form? (a) No (b) Yes
  21. 21.Write 20/24 in its simplest form. =
  22. 22.Write 6/9 in its simplest form. =
  23. 23.Is 3/10 in its simplest form? (a) Yes (b) No
  24. 24.Is 2/12 in its simplest form? (a) No (b) Yes
  25. 25.What is the HCF of 9 and 30?
  26. 26.Write 5/40 in its simplest form. =
  27. 27.What is the HCF of 7 and 14?
  28. 28.What is the HCF of 12 and 14?
  29. 29.Write 20/28 in its simplest form. =
  30. 30.Write 4/14 in its simplest form. =
  31. 31.What is the HCF of 10 and 25?
  32. 32.Write 32/72 in its simplest form. =
  33. 33.What is the HCF of 2 and 12?
  34. 34.What is the HCF of 28 and 35?
  35. 35.What is the HCF of 2 and 16?
  36. 36.What is the HCF of 7 and 63?
  37. 37.Write 20/32 in its simplest form. =
  38. 38.Is 2/4 in its simplest form? (a) No (b) Yes
  39. 39.Is 4/9 in its simplest form? (a) No (b) Yes
  40. 40.What is the HCF of 25 and 35?

Answer key

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

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