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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 530 · 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 5/6 litre of juice. Riya drinks 1/8 litre. How much juice is left (in litres)? =
  2. 2.2/3 − 2/7 =
  3. 3.7/8 − 5/6 =
  4. 4.A tank is 3/10 full of water. Then water filling 1/5 of the tank is used. What fraction of the tank is full now? =
  5. 5.4/5 − 1/6 =
  6. 6.2/3 − 4/7 =
  7. 7.A bottle has 5/6 litre of juice. Arjun drinks 2/3 litre. How much juice is left (in litres)? =
  8. 8.7/9 − 1/2 =
  9. 9.A tank is 1/3 full of water. Then water filling 1/7 of the tank is used. What fraction of the tank is full now? =
  10. 10.2/3 − 1/9 =
  11. 11.A bottle has 6/7 litre of juice. Kabir drinks 1/3 litre. How much juice is left (in litres)? =
  12. 12.Vihaan has a ribbon 4/9 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  13. 13.A bottle has 2/3 litre of juice. Ishaan drinks 1/10 litre. How much juice is left (in litres)? =
  14. 14.1/4 − 1/5 =
  15. 15.4/5 − 1/4 =
  16. 16.A bottle has 3/4 litre of juice. Meera drinks 2/7 litre. How much juice is left (in litres)? =
  17. 17.7/10 − 1/5 =
  18. 18.1/3 − 1/9 =
  19. 19.A tank is 2/3 full of water. Then water filling 4/7 of the tank is used. What fraction of the tank is full now? =
  20. 20.A bottle has 8/9 litre of juice. Aarav drinks 5/6 litre. How much juice is left (in litres)? =
  21. 21.Kabir has a ribbon 5/6 m long and cuts off 1/9 m. How long is the ribbon now (in m)? =
  22. 22.1/2 − 1/5 =
  23. 23.A bottle has 1/2 litre of juice. Aarav drinks 4/9 litre. How much juice is left (in litres)? =
  24. 24.1/3 − 1/7 =
  25. 25.Tara has a ribbon 1/4 m long and cuts off 1/7 m. How long is the ribbon now (in m)? =
  26. 26.A bottle has 1/3 litre of juice. Aarav drinks 2/7 litre. How much juice is left (in litres)? =
  27. 27.1/2 − 2/7 =
  28. 28.A bottle has 1/2 litre of juice. Diya drinks 1/9 litre. How much juice is left (in litres)? =
  29. 29.3/5 − 1/10 =
  30. 30.A bottle has 4/9 litre of juice. Rohan drinks 1/3 litre. How much juice is left (in litres)? =
  31. 31.5/6 − 2/5 =
  32. 32.A bottle has 1/3 litre of juice. Anaya drinks 3/10 litre. How much juice is left (in litres)? =
  33. 33.A tank is 4/5 full of water. Then water filling 7/10 of the tank is used. What fraction of the tank is full now? =
  34. 34.7/10 − 2/5 =
  35. 35.A bottle has 1/3 litre of juice. Riya drinks 1/6 litre. How much juice is left (in litres)? =
  36. 36.Tara has a ribbon 3/4 m long and cuts off 1/7 m. How long is the ribbon now (in m)? =
  37. 37.3/4 − 3/10 =
  38. 38.A bottle has 7/8 litre of juice. Vihaan drinks 1/3 litre. How much juice is left (in litres)? =
  39. 39.A bottle has 5/9 litre of juice. Meera drinks 1/6 litre. How much juice is left (in litres)? =
  40. 40.A bottle has 1/4 litre of juice. Tara drinks 1/7 litre. How much juice is left (in litres)? =

Answer key

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

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