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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 627 · 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 1/2 litre of juice. Diya drinks 2/7 litre. How much juice is left (in litres)? =
  2. 2.8/9 − 1/3 =
  3. 3.A bottle has 7/8 litre of juice. Tara drinks 1/3 litre. How much juice is left (in litres)? =
  4. 4.A tank is 1/2 full of water. Then water filling 1/9 of the tank is used. What fraction of the tank is full now? =
  5. 5.Riya has a ribbon 1/2 m long and cuts off 1/10 m. How long is the ribbon now (in m)? =
  6. 6.A bottle has 5/6 litre of juice. Anaya drinks 1/4 litre. How much juice is left (in litres)? =
  7. 7.8/9 − 2/3 =
  8. 8.A bottle has 5/6 litre of juice. Meera drinks 1/10 litre. How much juice is left (in litres)? =
  9. 9.Meera has a ribbon 3/4 m long and cuts off 2/5 m. How long is the ribbon now (in m)? =
  10. 10.A bottle has 3/4 litre of juice. Vihaan drinks 5/8 litre. How much juice is left (in litres)? =
  11. 11.Aarav has a ribbon 3/4 m long and cuts off 5/7 m. How long is the ribbon now (in m)? =
  12. 12.A tank is 9/10 full of water. Then water filling 4/5 of the tank is used. What fraction of the tank is full now? =
  13. 13.A bottle has 5/6 litre of juice. Diya drinks 1/9 litre. How much juice is left (in litres)? =
  14. 14.A bottle has 1/4 litre of juice. Ishaan drinks 1/10 litre. How much juice is left (in litres)? =
  15. 15.A bottle has 9/10 litre of juice. Tara drinks 1/3 litre. How much juice is left (in litres)? =
  16. 16.A bottle has 6/7 litre of juice. Anaya drinks 2/3 litre. How much juice is left (in litres)? =
  17. 17.2/5 − 1/4 =
  18. 18.1/2 − 1/8 =
  19. 19.6/7 − 3/4 =
  20. 20.1/2 − 4/9 =
  21. 21.A tank is 5/6 full of water. Then water filling 1/8 of the tank is used. What fraction of the tank is full now? =
  22. 22.Meera has a ribbon 5/6 m long and cuts off 4/9 m. How long is the ribbon now (in m)? =
  23. 23.A bottle has 9/10 litre of juice. Anaya drinks 3/4 litre. How much juice is left (in litres)? =
  24. 24.2/5 − 1/10 =
  25. 25.3/5 − 1/6 =
  26. 26.6/7 − 2/3 =
  27. 27.1/4 − 1/8 =
  28. 28.4/7 − 1/4 =
  29. 29.A tank is 3/4 full of water. Then water filling 4/7 of the tank is used. What fraction of the tank is full now? =
  30. 30.Meera has a ribbon 2/3 m long and cuts off 2/9 m. How long is the ribbon now (in m)? =
  31. 31.3/10 − 1/5 =
  32. 32.Kabir has a ribbon 8/9 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  33. 33.3/5 − 3/10 =
  34. 34.1/3 − 1/10 =
  35. 35.9/10 − 1/5 =
  36. 36.A tank is 1/4 full of water. Then water filling 1/8 of the tank is used. What fraction of the tank is full now? =
  37. 37.5/8 − 1/3 =
  38. 38.Riya has a ribbon 5/6 m long and cuts off 1/8 m. How long is the ribbon now (in m)? =
  39. 39.A bottle has 5/8 litre of juice. Aarav drinks 1/2 litre. How much juice is left (in litres)? =
  40. 40.Riya has a ribbon 2/3 m long and cuts off 4/9 m. How long is the ribbon now (in m)? =

Answer key

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

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