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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 236 · 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 4/9 litre of juice. Diya drinks 1/3 litre. How much juice is left (in litres)? =
  2. 2.4/7 − 1/4 =
  3. 3.A bottle has 3/4 litre of juice. Tara drinks 3/7 litre. How much juice is left (in litres)? =
  4. 4.Meera has a ribbon 1/3 m long and cuts off 2/9 m. How long is the ribbon now (in m)? =
  5. 5.A bottle has 2/3 litre of juice. Diya drinks 1/7 litre. How much juice is left (in litres)? =
  6. 6.2/3 − 1/4 =
  7. 7.A bottle has 2/3 litre of juice. Vihaan drinks 2/9 litre. How much juice is left (in litres)? =
  8. 8.1/5 − 1/10 =
  9. 9.2/3 − 1/10 =
  10. 10.8/9 − 1/6 =
  11. 11.Tara has a ribbon 1/6 m long and cuts off 1/8 m. How long is the ribbon now (in m)? =
  12. 12.A bottle has 2/3 litre of juice. Sara drinks 1/2 litre. How much juice is left (in litres)? =
  13. 13.A bottle has 7/10 litre of juice. Kabir drinks 2/3 litre. How much juice is left (in litres)? =
  14. 14.Diya has a ribbon 3/4 m long and cuts off 5/7 m. How long is the ribbon now (in m)? =
  15. 15.A tank is 2/3 full of water. Then water filling 3/7 of the tank is used. What fraction of the tank is full now? =
  16. 16.Aarav has a ribbon 4/5 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  17. 17.A tank is 1/3 full of water. Then water filling 1/8 of the tank is used. What fraction of the tank is full now? =
  18. 18.A bottle has 3/4 litre of juice. Aarav drinks 5/7 litre. How much juice is left (in litres)? =
  19. 19.A bottle has 2/3 litre of juice. Anaya drinks 1/7 litre. How much juice is left (in litres)? =
  20. 20.A bottle has 7/10 litre of juice. Aarav drinks 1/3 litre. How much juice is left (in litres)? =
  21. 21.3/5 − 1/10 =
  22. 22.A tank is 2/3 full of water. Then water filling 5/8 of the tank is used. What fraction of the tank is full now? =
  23. 23.A tank is 7/8 full of water. Then water filling 5/6 of the tank is used. What fraction of the tank is full now? =
  24. 24.A bottle has 8/9 litre of juice. Aarav drinks 2/3 litre. How much juice is left (in litres)? =
  25. 25.6/7 − 1/4 =
  26. 26.1/6 − 1/9 =
  27. 27.5/6 − 3/4 =
  28. 28.A bottle has 7/10 litre of juice. Riya drinks 1/4 litre. How much juice is left (in litres)? =
  29. 29.2/3 − 5/8 =
  30. 30.1/2 − 1/8 =
  31. 31.5/7 − 1/4 =
  32. 32.A tank is 3/8 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  33. 33.5/6 − 2/9 =
  34. 34.A bottle has 1/2 litre of juice. Rohan drinks 1/7 litre. How much juice is left (in litres)? =
  35. 35.A bottle has 8/9 litre of juice. Arjun drinks 2/3 litre. How much juice is left (in litres)? =
  36. 36.A tank is 7/10 full of water. Then water filling 3/5 of the tank is used. What fraction of the tank is full now? =
  37. 37.5/7 − 1/2 =
  38. 38.7/10 − 3/5 =
  39. 39.3/7 − 1/4 =
  40. 40.A bottle has 9/10 litre of juice. Kabir drinks 5/6 litre. How much juice is left (in litres)? =

Answer key

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

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