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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 831 · 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.A bottle has 1/3 litre of juice. Anaya drinks 1/5 litre. How much juice is left (in litres)? =
  2. 2.Meera has a ribbon 6/7 m long and cuts off 1/2 m. How long is the ribbon now (in m)? =
  3. 3.Tara has a ribbon 5/9 m long and cuts off 1/2 m. How long is the ribbon now (in m)? =
  4. 4.A bottle has 1/2 litre of juice. Anaya drinks 1/9 litre. How much juice is left (in litres)? =
  5. 5.Tara has a ribbon 1/3 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  6. 6.Riya has a ribbon 2/9 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  7. 7.A bottle has 2/3 litre of juice. Ishaan drinks 2/7 litre. How much juice is left (in litres)? =
  8. 8.A tank is 2/3 full of water. Then water filling 1/2 of the tank is used. What fraction of the tank is full now? =
  9. 9.1/3 − 1/4 =
  10. 10.A tank is 7/8 full of water. Then water filling 1/4 of the tank is used. What fraction of the tank is full now? =
  11. 11.3/4 − 1/6 =
  12. 12.9/10 − 3/5 =
  13. 13.Diya has a ribbon 5/6 m long and cuts off 7/9 m. How long is the ribbon now (in m)? =
  14. 14.9/10 − 1/2 =
  15. 15.1/2 − 1/4 =
  16. 16.Arjun has a ribbon 1/6 m long and cuts off 1/8 m. How long is the ribbon now (in m)? =
  17. 17.Riya has a ribbon 1/6 m long and cuts off 1/9 m. How long is the ribbon now (in m)? =
  18. 18.2/3 − 1/10 =
  19. 19.7/10 − 1/3 =
  20. 20.9/10 − 4/5 =
  21. 21.Ishaan has a ribbon 4/5 m long and cuts off 3/4 m. How long is the ribbon now (in m)? =
  22. 22.Vihaan has a ribbon 2/3 m long and cuts off 1/9 m. How long is the ribbon now (in m)? =
  23. 23.3/4 − 3/5 =
  24. 24.Anaya has a ribbon 5/6 m long and cuts off 7/9 m. How long is the ribbon now (in m)? =
  25. 25.A bottle has 9/10 litre of juice. Sara drinks 1/4 litre. How much juice is left (in litres)? =
  26. 26.4/9 − 1/3 =
  27. 27.9/10 − 1/6 =
  28. 28.1/2 − 2/9 =
  29. 29.Diya has a ribbon 2/5 m long and cuts off 3/10 m. How long is the ribbon now (in m)? =
  30. 30.5/6 − 1/2 =
  31. 31.Rohan has a ribbon 5/6 m long and cuts off 7/9 m. How long is the ribbon now (in m)? =
  32. 32.A bottle has 9/10 litre of juice. Meera drinks 1/4 litre. How much juice is left (in litres)? =
  33. 33.Diya has a ribbon 1/2 m long and cuts off 1/8 m. How long is the ribbon now (in m)? =
  34. 34.1/2 − 1/7 =
  35. 35.2/3 − 5/9 =
  36. 36.5/6 − 2/3 =
  37. 37.1/2 − 3/7 =
  38. 38.A bottle has 3/8 litre of juice. Vihaan drinks 1/3 litre. How much juice is left (in litres)? =
  39. 39.Riya has a ribbon 1/3 m long and cuts off 1/9 m. How long is the ribbon now (in m)? =
  40. 40.A tank is 9/10 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =

Answer key

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

Free fractions lessons, practice and worksheets at talentjr.in/fractions-for-kids