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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 761 · 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 30/36 in its simplest form. =
  2. 2.Is 2/10 in its simplest form? (a) No (b) Yes
  3. 3.What is the HCF of 4 and 40?
  4. 4.What is the HCF of 35 and 49?
  5. 5.Write 28/40 in its simplest form. =
  6. 6.Is 10/35 in its simplest form? (a) Yes (b) No
  7. 7.What is the HCF of 64 and 72?
  8. 8.Is 12/20 in its simplest form? (a) No (b) Yes
  9. 9.Write 36/45 in its simplest form. =
  10. 10.What is the HCF of 15 and 24?
  11. 11.Write 36/81 in its simplest form. =
  12. 12.Is 2/9 in its simplest form? (a) No (b) Yes
  13. 13.Write 72/81 in its simplest form. =
  14. 14.Is 9/24 in its simplest form? (a) No (b) Yes
  15. 15.Is 12/18 in its simplest form? (a) No (b) Yes
  16. 16.Write 7/56 in its simplest form. =
  17. 17.Is 6/10 in its simplest form? (a) No (b) Yes
  18. 18.Write 24/30 in its simplest form. =
  19. 19.Write 8/12 in its simplest form. =
  20. 20.Write 9/18 in its simplest form. =
  21. 21.Is 35/50 in its simplest form? (a) No (b) Yes
  22. 22.What is the HCF of 56 and 80?
  23. 23.What is the HCF of 56 and 64?
  24. 24.What is the HCF of 20 and 24?
  25. 25.What is the HCF of 18 and 21?
  26. 26.Write 18/45 in its simplest form. =
  27. 27.Is 1/3 in its simplest form? (a) No (b) Yes
  28. 28.What is the HCF of 4 and 14?
  29. 29.Is 8/28 in its simplest form? (a) No (b) Yes
  30. 30.Is 2/8 in its simplest form? (a) No (b) Yes
  31. 31.What is the HCF of 2 and 14?
  32. 32.Write 20/28 in its simplest form. =
  33. 33.What is the HCF of 14 and 63?
  34. 34.Is 18/42 in its simplest form? (a) No (b) Yes
  35. 35.Write 9/24 in its simplest form. =
  36. 36.What is the HCF of 7 and 42?
  37. 37.Write 6/24 in its simplest form. =
  38. 38.What is the HCF of 45 and 54?
  39. 39.What is the HCF of 4 and 24?
  40. 40.Is 2/12 in its simplest form? (a) Yes (b) No

Answer key

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

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