← Subtracting fractions: different denominators lesson New set →

Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 760 · 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 2/3 full of water. Then water filling 1/4 of the tank is used. What fraction of the tank is full now? =
  2. 2.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? =
  3. 3.A tank is 1/3 full of water. Then water filling 2/9 of the tank is used. What fraction of the tank is full now? =
  4. 4.5/6 − 2/3 =
  5. 5.Rohan has a ribbon 1/2 m long and cuts off 2/7 m. How long is the ribbon now (in m)? =
  6. 6.A bottle has 5/6 litre of juice. Tara drinks 7/9 litre. How much juice is left (in litres)? =
  7. 7.4/7 − 1/2 =
  8. 8.5/6 − 3/8 =
  9. 9.Meera has a ribbon 4/7 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  10. 10.4/5 − 2/3 =
  11. 11.A tank is 2/3 full of water. Then water filling 1/7 of the tank is used. What fraction of the tank is full now? =
  12. 12.2/3 − 1/8 =
  13. 13.A bottle has 2/3 litre of juice. Ishaan drinks 4/9 litre. How much juice is left (in litres)? =
  14. 14.2/3 − 2/5 =
  15. 15.A bottle has 1/2 litre of juice. Vihaan drinks 2/7 litre. How much juice is left (in litres)? =
  16. 16.2/3 − 3/8 =
  17. 17.2/3 − 1/5 =
  18. 18.Tara has a ribbon 1/2 m long and cuts off 1/5 m. How long is the ribbon now (in m)? =
  19. 19.2/3 − 5/9 =
  20. 20.1/5 − 1/10 =
  21. 21.Aarav has a ribbon 2/3 m long and cuts off 1/5 m. How long is the ribbon now (in m)? =
  22. 22.A bottle has 1/4 litre of juice. Kabir drinks 1/5 litre. How much juice is left (in litres)? =
  23. 23.6/7 − 1/2 =
  24. 24.2/3 − 1/9 =
  25. 25.2/3 − 4/9 =
  26. 26.3/4 − 5/8 =
  27. 27.A bottle has 9/10 litre of juice. Vihaan drinks 1/4 litre. How much juice is left (in litres)? =
  28. 28.Tara has a ribbon 9/10 m long and cuts off 2/3 m. How long is the ribbon now (in m)? =
  29. 29.1/6 − 1/10 =
  30. 30.1/6 − 1/8 =
  31. 31.A bottle has 3/4 litre of juice. Tara drinks 2/5 litre. How much juice is left (in litres)? =
  32. 32.2/3 − 3/7 =
  33. 33.A bottle has 1/6 litre of juice. Meera drinks 1/9 litre. How much juice is left (in litres)? =
  34. 34.7/10 − 1/4 =
  35. 35.A tank is 9/10 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  36. 36.Meera has a ribbon 4/5 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  37. 37.A tank is 4/7 full of water. Then water filling 1/2 of the tank is used. What fraction of the tank is full now? =
  38. 38.A bottle has 3/4 litre of juice. Meera drinks 1/10 litre. How much juice is left (in litres)? =
  39. 39.A bottle has 2/3 litre of juice. Diya drinks 3/5 litre. How much juice is left (in litres)? =
  40. 40.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? =

Answer key

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

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