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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 429 · 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.Is 8/9 in its simplest form? (a) Yes (b) No
  2. 2.Write 15/35 in its simplest form. =
  3. 3.Write 8/36 in its simplest form. =
  4. 4.Is 3/4 in its simplest form? (a) Yes (b) No
  5. 5.Write 2/6 in its simplest form. =
  6. 6.Is 3/8 in its simplest form? (a) Yes (b) No
  7. 7.Is 30/35 in its simplest form? (a) Yes (b) No
  8. 8.Write 5/45 in its simplest form. =
  9. 9.What is the HCF of 10 and 16?
  10. 10.Is 5/9 in its simplest form? (a) Yes (b) No
  11. 11.What is the HCF of 63 and 70?
  12. 12.Is 2/18 in its simplest form? (a) No (b) Yes
  13. 13.What is the HCF of 15 and 50?
  14. 14.What is the HCF of 21 and 56?
  15. 15.Write 6/9 in its simplest form. =
  16. 16.What is the HCF of 7 and 35?
  17. 17.Write 6/8 in its simplest form. =
  18. 18.Write 10/35 in its simplest form. =
  19. 19.What is the HCF of 18 and 30?
  20. 20.What is the HCF of 10 and 25?
  21. 21.Is 4/5 in its simplest form? (a) No (b) Yes
  22. 22.Write 56/63 in its simplest form. =
  23. 23.Write 72/80 in its simplest form. =
  24. 24.What is the HCF of 2 and 16?
  25. 25.Is 8/10 in its simplest form? (a) No (b) Yes
  26. 26.Write 15/27 in its simplest form. =
  27. 27.Is 3/6 in its simplest form? (a) Yes (b) No
  28. 28.What is the HCF of 9 and 24?
  29. 29.Write 4/18 in its simplest form. =
  30. 30.Write 27/30 in its simplest form. =
  31. 31.Write 9/15 in its simplest form. =
  32. 32.What is the HCF of 24 and 40?
  33. 33.Is 3/5 in its simplest form? (a) No (b) Yes
  34. 34.Is 2/3 in its simplest form? (a) No (b) Yes
  35. 35.Write 24/30 in its simplest form. =
  36. 36.What is the HCF of 2 and 10?
  37. 37.Write 10/15 in its simplest form. =
  38. 38.Is 2/7 in its simplest form? (a) Yes (b) No
  39. 39.Write 35/42 in its simplest form. =
  40. 40.Is 5/30 in its simplest form? (a) Yes (b) No

Answer key

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

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