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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 143 · 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 4 and 10?
  2. 2.Write 14/16 in its simplest form. =
  3. 3.Write 21/70 in its simplest form. =
  4. 4.Write 14/18 in its simplest form. =
  5. 5.What is the HCF of 28 and 36?
  6. 6.Write 4/8 in its simplest form. =
  7. 7.Is 2/9 in its simplest form? (a) Yes (b) No
  8. 8.Write 18/60 in its simplest form. =
  9. 9.What is the HCF of 20 and 32?
  10. 10.What is the HCF of 7 and 56?
  11. 11.What is the HCF of 28 and 63?
  12. 12.What is the HCF of 49 and 56?
  13. 13.Write 35/63 in its simplest form. =
  14. 14.What is the HCF of 8 and 28?
  15. 15.Is 20/35 in its simplest form? (a) No (b) Yes
  16. 16.What is the HCF of 21 and 24?
  17. 17.What is the HCF of 5 and 20?
  18. 18.Is 12/20 in its simplest form? (a) No (b) Yes
  19. 19.Write 2/14 in its simplest form. =
  20. 20.Is 2/10 in its simplest form? (a) No (b) Yes
  21. 21.Write 28/36 in its simplest form. =
  22. 22.What is the HCF of 25 and 30?
  23. 23.What is the HCF of 18 and 21?
  24. 24.Write 24/32 in its simplest form. =
  25. 25.What is the HCF of 6 and 14?
  26. 26.What is the HCF of 6 and 16?
  27. 27.Write 5/35 in its simplest form. =
  28. 28.What is the HCF of 28 and 40?
  29. 29.Is 42/48 in its simplest form? (a) Yes (b) No
  30. 30.Write 6/12 in its simplest form. =
  31. 31.Is 2/18 in its simplest form? (a) No (b) Yes
  32. 32.Write 21/30 in its simplest form. =
  33. 33.What is the HCF of 14 and 18?
  34. 34.Write 9/72 in its simplest form. =
  35. 35.Write 18/42 in its simplest form. =
  36. 36.Write 35/56 in its simplest form. =
  37. 37.What is the HCF of 20 and 35?
  38. 38.Is 18/42 in its simplest form? (a) Yes (b) No
  39. 39.Is 36/40 in its simplest form? (a) Yes (b) No
  40. 40.Write 6/15 in its simplest form. =

Answer key

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

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