← Subtracting fractions: different denominators lesson New set →

Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 60 · 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. 1.5/6 − 5/9 =
  2. 2.2/3 − 3/7 =
  3. 3.A tank is 1/5 full of water. Then water filling 1/10 of the tank is used. What fraction of the tank is full now? =
  4. 4.5/6 − 1/8 =
  5. 5.5/6 − 7/10 =
  6. 6.1/2 − 1/10 =
  7. 7.A bottle has 3/4 litre of juice. Diya drinks 3/5 litre. How much juice is left (in litres)? =
  8. 8.A tank is 5/6 full of water. Then water filling 1/10 of the tank is used. What fraction of the tank is full now? =
  9. 9.1/4 − 1/7 =
  10. 10.A bottle has 4/5 litre of juice. Arjun drinks 1/6 litre. How much juice is left (in litres)? =
  11. 11.2/3 − 1/5 =
  12. 12.7/8 − 1/4 =
  13. 13.A bottle has 1/2 litre of juice. Ishaan drinks 1/4 litre. How much juice is left (in litres)? =
  14. 14.Vihaan has a ribbon 4/5 m long and cuts off 3/10 m. How long is the ribbon now (in m)? =
  15. 15.3/4 − 3/5 =
  16. 16.2/7 − 1/4 =
  17. 17.2/3 − 4/7 =
  18. 18.8/9 − 1/2 =
  19. 19.Sara has a ribbon 3/4 m long and cuts off 7/10 m. How long is the ribbon now (in m)? =
  20. 20.7/9 − 1/6 =
  21. 21.1/2 − 4/9 =
  22. 22.1/3 − 1/6 =
  23. 23.Riya has a ribbon 9/10 m long and cuts off 1/2 m. How long is the ribbon now (in m)? =
  24. 24.Riya has a ribbon 5/7 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  25. 25.4/7 − 1/3 =
  26. 26.3/4 − 1/2 =
  27. 27.1/2 − 2/9 =
  28. 28.3/4 − 2/5 =
  29. 29.A tank is 2/5 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  30. 30.5/6 − 2/3 =
  31. 31.1/2 − 1/7 =
  32. 32.3/8 − 1/3 =
  33. 33.A tank is 3/5 full of water. Then water filling 1/2 of the tank is used. What fraction of the tank is full now? =
  34. 34.Tara has a ribbon 4/5 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  35. 35.A tank is 5/8 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  36. 36.Kabir has a ribbon 9/10 m long and cuts off 3/5 m. How long is the ribbon now (in m)? =
  37. 37.5/6 − 3/8 =
  38. 38.A tank is 7/9 full of water. Then water filling 1/2 of the tank is used. What fraction of the tank is full now? =
  39. 39.A bottle has 1/3 litre of juice. Sara drinks 1/9 litre. How much juice is left (in litres)? =
  40. 40.A tank is 3/7 full of water. Then water filling 1/4 of the tank is used. What fraction of the tank is full now? =

Answer key

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

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