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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 514 · 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 48/56 in its simplest form. =
  2. 2.Write 25/45 in its simplest form. =
  3. 3.What is the HCF of 8 and 28?
  4. 4.What is the HCF of 8 and 72?
  5. 5.Write 35/50 in its simplest form. =
  6. 6.What is the HCF of 63 and 90?
  7. 7.Write 15/27 in its simplest form. =
  8. 8.Is 36/40 in its simplest form? (a) Yes (b) No
  9. 9.Is 4/5 in its simplest form? (a) Yes (b) No
  10. 10.Write 8/80 in its simplest form. =
  11. 11.Is 6/16 in its simplest form? (a) Yes (b) No
  12. 12.Is 30/54 in its simplest form? (a) Yes (b) No
  13. 13.Is 6/7 in its simplest form? (a) Yes (b) No
  14. 14.What is the HCF of 4 and 8?
  15. 15.Is 6/15 in its simplest form? (a) No (b) Yes
  16. 16.Is 35/50 in its simplest form? (a) Yes (b) No
  17. 17.Write 6/16 in its simplest form. =
  18. 18.Is 6/8 in its simplest form? (a) Yes (b) No
  19. 19.Is 27/30 in its simplest form? (a) No (b) Yes
  20. 20.What is the HCF of 35 and 63?
  21. 21.Is 15/24 in its simplest form? (a) Yes (b) No
  22. 22.Is 2/7 in its simplest form? (a) Yes (b) No
  23. 23.What is the HCF of 5 and 15?
  24. 24.Write 8/36 in its simplest form. =
  25. 25.Write 35/56 in its simplest form. =
  26. 26.Write 6/27 in its simplest form. =
  27. 27.Is 5/7 in its simplest form? (a) Yes (b) No
  28. 28.Write 20/28 in its simplest form. =
  29. 29.What is the HCF of 40 and 56?
  30. 30.What is the HCF of 14 and 18?
  31. 31.Write 2/18 in its simplest form. =
  32. 32.Is 42/60 in its simplest form? (a) No (b) Yes
  33. 33.Write 14/63 in its simplest form. =
  34. 34.Write 18/63 in its simplest form. =
  35. 35.Write 9/81 in its simplest form. =
  36. 36.Write 3/18 in its simplest form. =
  37. 37.Write 12/15 in its simplest form. =
  38. 38.Write 16/36 in its simplest form. =
  39. 39.What is the HCF of 28 and 36?
  40. 40.Write 6/24 in its simplest form. =

Answer key

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

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