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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 273 · 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 1/4 litre of juice. Riya drinks 1/10 litre. How much juice is left (in litres)? =
  2. 2.2/3 − 2/9 =
  3. 3.A tank is 5/8 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  4. 4.A bottle has 1/4 litre of juice. Kabir drinks 1/8 litre. How much juice is left (in litres)? =
  5. 5.Meera has a ribbon 3/5 m long and cuts off 1/2 m. How long is the ribbon now (in m)? =
  6. 6.6/7 − 1/2 =
  7. 7.5/7 − 2/3 =
  8. 8.5/6 − 1/10 =
  9. 9.3/4 − 1/5 =
  10. 10.2/3 − 5/9 =
  11. 11.A bottle has 7/10 litre of juice. Tara drinks 1/2 litre. How much juice is left (in litres)? =
  12. 12.Vihaan has a ribbon 3/7 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  13. 13.Sara has a ribbon 3/5 m long and cuts off 1/2 m. How long is the ribbon now (in m)? =
  14. 14.9/10 − 1/3 =
  15. 15.A tank is 7/9 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  16. 16.3/10 − 1/5 =
  17. 17.A tank is 5/6 full of water. Then water filling 2/9 of the tank is used. What fraction of the tank is full now? =
  18. 18.Arjun has a ribbon 7/9 m long and cuts off 1/2 m. How long is the ribbon now (in m)? =
  19. 19.Anaya has a ribbon 6/7 m long and cuts off 2/3 m. How long is the ribbon now (in m)? =
  20. 20.1/2 − 2/9 =
  21. 21.5/6 − 1/9 =
  22. 22.3/4 − 5/7 =
  23. 23.3/5 − 1/4 =
  24. 24.A bottle has 1/2 litre of juice. Vihaan drinks 3/10 litre. How much juice is left (in litres)? =
  25. 25.A bottle has 3/5 litre of juice. Vihaan drinks 1/6 litre. How much juice is left (in litres)? =
  26. 26.4/5 − 3/10 =
  27. 27.A bottle has 1/3 litre of juice. Riya drinks 1/10 litre. How much juice is left (in litres)? =
  28. 28.Meera has a ribbon 7/10 m long and cuts off 1/5 m. How long is the ribbon now (in m)? =
  29. 29.1/6 − 1/8 =
  30. 30.4/5 − 1/4 =
  31. 31.Sara has a ribbon 5/7 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  32. 32.A tank is 1/2 full of water. Then water filling 1/7 of the tank is used. What fraction of the tank is full now? =
  33. 33.1/3 − 1/10 =
  34. 34.1/3 − 1/4 =
  35. 35.3/4 − 4/7 =
  36. 36.1/5 − 1/6 =
  37. 37.A bottle has 3/7 litre of juice. Diya drinks 1/4 litre. How much juice is left (in litres)? =
  38. 38.1/2 − 1/8 =
  39. 39.A tank is 7/9 full of water. Then water filling 1/2 of the tank is used. What fraction of the tank is full now? =
  40. 40.2/5 − 1/3 =

Answer key

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

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