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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 184 · 40 questions
TalentJR

The method (LCM, then take away): Find the LCM of the two bottom numbers. Change each fraction to that bottom number. Subtract the tops, keep the bottom, and simplify.

NameDateTime takenScore ___ / 40
  1. 1.1/3 − 3/10 =
  2. 2.A bottle has 4/7 litre of juice. Ishaan drinks 1/2 litre. How much juice is left (in litres)? =
  3. 3.Kabir has a ribbon 2/3 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  4. 4.1/2 − 2/9 =
  5. 5.1/2 − 1/5 =
  6. 6.1/4 − 1/7 =
  7. 7.Kabir has a ribbon 9/10 m long and cuts off 3/4 m. How long is the ribbon now (in m)? =
  8. 8.A bottle has 1/6 litre of juice. Anaya drinks 1/8 litre. How much juice is left (in litres)? =
  9. 9.7/9 − 2/3 =
  10. 10.9/10 − 1/3 =
  11. 11.A bottle has 5/6 litre of juice. Kabir drinks 4/9 litre. How much juice is left (in litres)? =
  12. 12.2/3 − 2/7 =
  13. 13.1/3 − 2/7 =
  14. 14.A bottle has 2/3 litre of juice. Diya drinks 1/5 litre. How much juice is left (in litres)? =
  15. 15.Diya has a ribbon 3/4 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  16. 16.Arjun has a ribbon 2/3 m long and cuts off 5/9 m. How long is the ribbon now (in m)? =
  17. 17.Aarav has a ribbon 3/4 m long and cuts off 1/8 m. How long is the ribbon now (in m)? =
  18. 18.5/9 − 1/2 =
  19. 19.Tara has a ribbon 1/3 m long and cuts off 1/9 m. How long is the ribbon now (in m)? =
  20. 20.Meera has a ribbon 5/6 m long and cuts off 5/9 m. How long is the ribbon now (in m)? =
  21. 21.3/4 − 1/5 =
  22. 22.1/6 − 1/8 =
  23. 23.3/5 − 1/6 =
  24. 24.3/8 − 1/3 =
  25. 25.5/6 − 5/8 =
  26. 26.Ishaan has a ribbon 6/7 m long and cuts off 2/3 m. How long is the ribbon now (in m)? =
  27. 27.Tara has a ribbon 1/2 m long and cuts off 1/10 m. How long is the ribbon now (in m)? =
  28. 28.1/3 − 1/7 =
  29. 29.8/9 − 5/6 =
  30. 30.2/5 − 1/3 =
  31. 31.4/5 − 1/2 =
  32. 32.5/9 − 1/6 =
  33. 33.A bottle has 3/10 litre of juice. Arjun drinks 1/5 litre. How much juice is left (in litres)? =
  34. 34.8/9 − 1/2 =
  35. 35.A bottle has 4/5 litre of juice. Anaya drinks 2/3 litre. How much juice is left (in litres)? =
  36. 36.A bottle has 2/3 litre of juice. Tara drinks 1/8 litre. How much juice is left (in litres)? =
  37. 37.4/5 − 1/6 =
  38. 38.Riya has a ribbon 4/5 m long and cuts off 1/10 m. How long is the ribbon now (in m)? =
  39. 39.3/4 − 5/7 =
  40. 40.1/4 − 1/6 =

Answer key

  1. 1/30
  2. 1/14
  3. 1/2
  4. 5/18
  5. 3/10
  6. 3/28
  7. 3/20
  8. 1/24
  9. 1/9
  10. 17/30
  11. 7/18
  12. 8/21
  13. 1/21
  14. 7/15
  15. 7/12
  16. 1/9
  17. 5/8
  18. 1/18
  19. 2/9
  20. 5/18
  21. 11/20
  22. 1/24
  23. 13/30
  24. 1/24
  25. 5/24
  26. 4/21
  27. 2/5
  28. 4/21
  29. 1/18
  30. 1/15
  31. 3/10
  32. 7/18
  33. 1/10
  34. 7/18
  35. 2/15
  36. 13/24
  37. 19/30
  38. 7/10
  39. 1/28
  40. 1/12

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