← Subtracting fractions: different denominators lesson New set →

Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 188 · 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 5/7 litre of juice. Meera drinks 2/3 litre. How much juice is left (in litres)? =
  2. 2.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? =
  3. 3.1/3 − 2/7 =
  4. 4.A bottle has 5/6 litre of juice. Kabir drinks 3/8 litre. How much juice is left (in litres)? =
  5. 5.A bottle has 9/10 litre of juice. Riya drinks 2/5 litre. How much juice is left (in litres)? =
  6. 6.A tank is 9/10 full of water. Then water filling 3/5 of the tank is used. What fraction of the tank is full now? =
  7. 7.9/10 − 3/5 =
  8. 8.1/3 − 1/8 =
  9. 9.2/3 − 4/9 =
  10. 10.6/7 − 2/3 =
  11. 11.5/6 − 2/5 =
  12. 12.Tara has a ribbon 3/4 m long and cuts off 3/7 m. How long is the ribbon now (in m)? =
  13. 13.2/3 − 3/7 =
  14. 14.5/6 − 1/10 =
  15. 15.3/4 − 2/7 =
  16. 16.2/3 − 5/9 =
  17. 17.A tank is 7/10 full of water. Then water filling 2/5 of the tank is used. What fraction of the tank is full now? =
  18. 18.A bottle has 3/4 litre of juice. Vihaan drinks 2/5 litre. How much juice is left (in litres)? =
  19. 19.3/7 − 1/4 =
  20. 20.Diya has a ribbon 5/6 m long and cuts off 1/9 m. How long is the ribbon now (in m)? =
  21. 21.2/3 − 2/9 =
  22. 22.A bottle has 4/5 litre of juice. Diya drinks 1/3 litre. How much juice is left (in litres)? =
  23. 23.3/4 − 7/10 =
  24. 24.1/6 − 1/9 =
  25. 25.A bottle has 8/9 litre of juice. Diya drinks 1/6 litre. How much juice is left (in litres)? =
  26. 26.6/7 − 1/2 =
  27. 27.9/10 − 1/5 =
  28. 28.A tank is 3/4 full of water. Then water filling 1/5 of the tank is used. What fraction of the tank is full now? =
  29. 29.2/5 − 1/10 =
  30. 30.Kabir has a ribbon 3/4 m long and cuts off 5/7 m. How long is the ribbon now (in m)? =
  31. 31.A tank is 1/3 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  32. 32.1/5 − 1/6 =
  33. 33.7/8 − 3/4 =
  34. 34.2/3 − 2/7 =
  35. 35.1/4 − 1/8 =
  36. 36.Riya has a ribbon 1/2 m long and cuts off 1/5 m. How long is the ribbon now (in m)? =
  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 − 1/10 =
  39. 39.A tank is 3/7 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  40. 40.7/8 − 1/4 =

Answer key

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

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