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Simplest Form Fractions Worksheet

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

Answer key

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

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