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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 16 · 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 14/35 in its simplest form. =
  2. 2.What is the HCF of 6 and 24?
  3. 3.Write 18/30 in its simplest form. =
  4. 4.Write 81/90 in its simplest form. =
  5. 5.Write 35/56 in its simplest form. =
  6. 6.What is the HCF of 5 and 45?
  7. 7.Write 18/81 in its simplest form. =
  8. 8.Is 4/7 in its simplest form? (a) No (b) Yes
  9. 9.Is 1/6 in its simplest form? (a) No (b) Yes
  10. 10.What is the HCF of 21 and 35?
  11. 11.What is the HCF of 35 and 56?
  12. 12.Is 3/5 in its simplest form? (a) No (b) Yes
  13. 13.What is the HCF of 6 and 15?
  14. 14.Is 7/10 in its simplest form? (a) Yes (b) No
  15. 15.Write 20/24 in its simplest form. =
  16. 16.Is 1/9 in its simplest form? (a) No (b) Yes
  17. 17.What is the HCF of 8 and 10?
  18. 18.Write 20/35 in its simplest form. =
  19. 19.Write 14/16 in its simplest form. =
  20. 20.What is the HCF of 6 and 16?
  21. 21.Write 5/25 in its simplest form. =
  22. 22.What is the HCF of 63 and 72?
  23. 23.Write 36/81 in its simplest form. =
  24. 24.Is 2/7 in its simplest form? (a) Yes (b) No
  25. 25.What is the HCF of 5 and 30?
  26. 26.What is the HCF of 4 and 8?
  27. 27.Is 5/9 in its simplest form? (a) No (b) Yes
  28. 28.What is the HCF of 20 and 35?
  29. 29.Is 10/18 in its simplest form? (a) No (b) Yes
  30. 30.Write 2/8 in its simplest form. =
  31. 31.What is the HCF of 2 and 12?
  32. 32.Write 30/42 in its simplest form. =
  33. 33.What is the HCF of 9 and 21?
  34. 34.Is 15/25 in its simplest form? (a) Yes (b) No
  35. 35.Is 1/5 in its simplest form? (a) No (b) Yes
  36. 36.Is 5/7 in its simplest form? (a) Yes (b) No
  37. 37.What is the HCF of 16 and 20?
  38. 38.Write 24/56 in its simplest form. =
  39. 39.Is 15/50 in its simplest form? (a) No (b) Yes
  40. 40.What is the HCF of 4 and 18?

Answer key

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

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