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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 281 · 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 45/50 in its simplest form. =
  2. 2.Write 35/50 in its simplest form. =
  3. 3.What is the HCF of 6 and 30?
  4. 4.Write 16/56 in its simplest form. =
  5. 5.What is the HCF of 6 and 14?
  6. 6.Is 15/24 in its simplest form? (a) Yes (b) No
  7. 7.Is 3/7 in its simplest form? (a) Yes (b) No
  8. 8.Write 2/16 in its simplest form. =
  9. 9.What is the HCF of 4 and 10?
  10. 10.Write 81/90 in its simplest form. =
  11. 11.What is the HCF of 64 and 72?
  12. 12.What is the HCF of 4 and 18?
  13. 13.Write 10/45 in its simplest form. =
  14. 14.Is 5/7 in its simplest form? (a) No (b) Yes
  15. 15.Write 12/27 in its simplest form. =
  16. 16.Is 3/8 in its simplest form? (a) Yes (b) No
  17. 17.Is 2/9 in its simplest form? (a) Yes (b) No
  18. 18.Write 10/16 in its simplest form. =
  19. 19.What is the HCF of 14 and 35?
  20. 20.Write 7/35 in its simplest form. =
  21. 21.Write 9/30 in its simplest form. =
  22. 22.Is 4/9 in its simplest form? (a) Yes (b) No
  23. 23.Write 12/15 in its simplest form. =
  24. 24.Write 9/54 in its simplest form. =
  25. 25.Write 8/20 in its simplest form. =
  26. 26.Write 27/45 in its simplest form. =
  27. 27.What is the HCF of 9 and 36?
  28. 28.What is the HCF of 3 and 12?
  29. 29.What is the HCF of 2 and 14?
  30. 30.Is 36/40 in its simplest form? (a) No (b) Yes
  31. 31.Write 12/30 in its simplest form. =
  32. 32.Write 18/20 in its simplest form. =
  33. 33.Is 8/20 in its simplest form? (a) No (b) Yes
  34. 34.Write 25/40 in its simplest form. =
  35. 35.Is 4/24 in its simplest form? (a) No (b) Yes
  36. 36.Write 45/63 in its simplest form. =
  37. 37.Is 4/5 in its simplest form? (a) No (b) Yes
  38. 38.Is 5/20 in its simplest form? (a) No (b) Yes
  39. 39.Write 27/30 in its simplest form. =
  40. 40.What is the HCF of 10 and 12?

Answer key

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

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