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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 244 · 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.What is the HCF of 16 and 28?
  2. 2.Is 1/6 in its simplest form? (a) No (b) Yes
  3. 3.Is 48/54 in its simplest form? (a) No (b) Yes
  4. 4.What is the HCF of 48 and 56?
  5. 5.Write 7/70 in its simplest form. =
  6. 6.Write 14/63 in its simplest form. =
  7. 7.Write 5/40 in its simplest form. =
  8. 8.What is the HCF of 4 and 36?
  9. 9.What is the HCF of 7 and 35?
  10. 10.Is 54/60 in its simplest form? (a) Yes (b) No
  11. 11.What is the HCF of 10 and 15?
  12. 12.What is the HCF of 8 and 28?
  13. 13.What is the HCF of 9 and 12?
  14. 14.Is 7/10 in its simplest form? (a) No (b) Yes
  15. 15.What is the HCF of 8 and 20?
  16. 16.Write 12/21 in its simplest form. =
  17. 17.What is the HCF of 14 and 18?
  18. 18.Write 63/90 in its simplest form. =
  19. 19.Write 3/21 in its simplest form. =
  20. 20.Write 27/36 in its simplest form. =
  21. 21.Write 15/40 in its simplest form. =
  22. 22.Write 9/36 in its simplest form. =
  23. 23.What is the HCF of 6 and 30?
  24. 24.Is 5/7 in its simplest form? (a) No (b) Yes
  25. 25.Write 2/20 in its simplest form. =
  26. 26.Write 7/35 in its simplest form. =
  27. 27.Is 6/7 in its simplest form? (a) Yes (b) No
  28. 28.Is 20/32 in its simplest form? (a) No (b) Yes
  29. 29.Write 12/40 in its simplest form. =
  30. 30.Is 4/16 in its simplest form? (a) Yes (b) No
  31. 31.Write 12/54 in its simplest form. =
  32. 32.Is 1/9 in its simplest form? (a) No (b) Yes
  33. 33.What is the HCF of 40 and 56?
  34. 34.Write 15/35 in its simplest form. =
  35. 35.Is 18/20 in its simplest form? (a) Yes (b) No
  36. 36.What is the HCF of 12 and 20?
  37. 37.What is the HCF of 48 and 54?
  38. 38.Is 4/9 in its simplest form? (a) Yes (b) No
  39. 39.Write 2/4 in its simplest form. =
  40. 40.Write 16/40 in its simplest form. =

Answer key

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

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