← Subtracting fractions: different denominators lesson New set →

Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 746 · 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 1/3 litre of juice. Arjun drinks 1/10 litre. How much juice is left (in litres)? =
  2. 2.A bottle has 7/9 litre of juice. Rohan drinks 1/2 litre. How much juice is left (in litres)? =
  3. 3.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? =
  4. 4.9/10 − 1/4 =
  5. 5.7/8 − 1/6 =
  6. 6.Rohan has a ribbon 3/4 m long and cuts off 1/10 m. How long is the ribbon now (in m)? =
  7. 7.A tank is 1/4 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  8. 8.A bottle has 6/7 litre of juice. Kabir drinks 1/2 litre. How much juice is left (in litres)? =
  9. 9.3/10 − 1/5 =
  10. 10.2/3 − 1/6 =
  11. 11.A tank is 2/3 full of water. Then water filling 2/7 of the tank is used. What fraction of the tank is full now? =
  12. 12.3/4 − 1/8 =
  13. 13.1/2 − 2/5 =
  14. 14.5/6 − 1/9 =
  15. 15.4/5 − 7/10 =
  16. 16.Aarav has a ribbon 6/7 m long and cuts off 3/4 m. How long is the ribbon now (in m)? =
  17. 17.6/7 − 1/2 =
  18. 18.A tank is 2/3 full of water. Then water filling 1/9 of the tank is used. What fraction of the tank is full now? =
  19. 19.Kabir has a ribbon 1/2 m long and cuts off 1/10 m. How long is the ribbon now (in m)? =
  20. 20.A tank is 3/8 full of water. Then water filling 1/4 of the tank is used. What fraction of the tank is full now? =
  21. 21.4/5 − 3/10 =
  22. 22.Sara has a ribbon 6/7 m long and cuts off 3/4 m. How long is the ribbon now (in m)? =
  23. 23.A tank is 1/2 full of water. Then water filling 2/7 of the tank is used. What fraction of the tank is full now? =
  24. 24.6/7 − 2/3 =
  25. 25.A bottle has 3/5 litre of juice. Anaya drinks 1/2 litre. How much juice is left (in litres)? =
  26. 26.A bottle has 9/10 litre of juice. Diya drinks 1/5 litre. How much juice is left (in litres)? =
  27. 27.Aarav has a ribbon 1/4 m long and cuts off 1/8 m. How long is the ribbon now (in m)? =
  28. 28.2/5 − 3/10 =
  29. 29.5/7 − 2/3 =
  30. 30.3/4 − 5/8 =
  31. 31.A bottle has 2/3 litre of juice. Vihaan drinks 5/8 litre. How much juice is left (in litres)? =
  32. 32.1/2 − 2/9 =
  33. 33.A tank is 4/7 full of water. Then water filling 1/4 of the tank is used. What fraction of the tank is full now? =
  34. 34.3/4 − 2/7 =
  35. 35.1/6 − 1/10 =
  36. 36.3/10 − 1/4 =
  37. 37.3/5 − 3/10 =
  38. 38.1/6 − 1/8 =
  39. 39.4/5 − 3/4 =
  40. 40.1/2 − 3/7 =

Answer key

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

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