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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 629 · 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 tank is 9/10 full of water. Then water filling 5/6 of the tank is used. What fraction of the tank is full now? =
  2. 2.2/5 − 1/10 =
  3. 3.Ishaan has a ribbon 4/5 m long and cuts off 7/10 m. How long is the ribbon now (in m)? =
  4. 4.2/3 − 3/7 =
  5. 5.A bottle has 2/9 litre of juice. Meera drinks 1/6 litre. How much juice is left (in litres)? =
  6. 6.2/3 − 1/8 =
  7. 7.Aarav has a ribbon 1/5 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  8. 8.2/3 − 1/7 =
  9. 9.A bottle has 2/3 litre of juice. Vihaan drinks 2/9 litre. How much juice is left (in litres)? =
  10. 10.1/2 − 2/9 =
  11. 11.A tank is 1/2 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  12. 12.2/3 − 3/8 =
  13. 13.A tank is 1/2 full of water. Then water filling 3/7 of the tank is used. What fraction of the tank is full now? =
  14. 14.A tank is 9/10 full of water. Then water filling 2/5 of the tank is used. What fraction of the tank is full now? =
  15. 15.A bottle has 2/3 litre of juice. Riya drinks 2/9 litre. How much juice is left (in litres)? =
  16. 16.A bottle has 1/3 litre of juice. Sara drinks 1/10 litre. How much juice is left (in litres)? =
  17. 17.A bottle has 4/7 litre of juice. Tara drinks 1/4 litre. How much juice is left (in litres)? =
  18. 18.Aarav has a ribbon 7/10 m long and cuts off 3/5 m. How long is the ribbon now (in m)? =
  19. 19.3/5 − 3/10 =
  20. 20.Sara has a ribbon 7/9 m long and cuts off 1/2 m. How long is the ribbon now (in m)? =
  21. 21.2/5 − 1/6 =
  22. 22.A tank is 7/8 full of water. Then water filling 2/3 of the tank is used. What fraction of the tank is full now? =
  23. 23.5/6 − 2/9 =
  24. 24.5/8 − 1/4 =
  25. 25.1/2 − 1/7 =
  26. 26.A bottle has 5/9 litre of juice. Vihaan drinks 1/6 litre. How much juice is left (in litres)? =
  27. 27.6/7 − 2/3 =
  28. 28.1/4 − 1/6 =
  29. 29.A bottle has 5/6 litre of juice. Arjun drinks 7/9 litre. How much juice is left (in litres)? =
  30. 30.A bottle has 7/8 litre of juice. Sara drinks 1/6 litre. How much juice is left (in litres)? =
  31. 31.A tank is 3/5 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  32. 32.5/9 − 1/3 =
  33. 33.A bottle has 6/7 litre of juice. Diya drinks 1/3 litre. How much juice is left (in litres)? =
  34. 34.A tank is 2/5 full of water. Then water filling 3/10 of the tank is used. What fraction of the tank is full now? =
  35. 35.5/6 − 4/5 =
  36. 36.1/3 − 1/9 =
  37. 37.4/9 − 1/3 =
  38. 38.A bottle has 1/2 litre of juice. Meera drinks 2/9 litre. How much juice is left (in litres)? =
  39. 39.8/9 − 1/3 =
  40. 40.Riya has a ribbon 9/10 m long and cuts off 3/5 m. How long is the ribbon now (in m)? =

Answer key

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

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