← Subtracting fractions: different denominators lesson New set →

Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 950 · 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.Tara has a ribbon 1/2 m long and cuts off 1/5 m. How long is the ribbon now (in m)? =
  2. 2.1/6 − 1/10 =
  3. 3.A tank is 1/2 full of water. Then water filling 2/9 of the tank is used. What fraction of the tank is full now? =
  4. 4.3/5 − 1/2 =
  5. 5.A bottle has 8/9 litre of juice. Meera drinks 1/3 litre. How much juice is left (in litres)? =
  6. 6.1/2 − 1/4 =
  7. 7.9/10 − 2/5 =
  8. 8.1/2 − 1/5 =
  9. 9.1/4 − 1/6 =
  10. 10.1/2 − 1/7 =
  11. 11.3/4 − 7/10 =
  12. 12.1/3 − 1/5 =
  13. 13.1/3 − 1/9 =
  14. 14.A tank is 4/9 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  15. 15.3/8 − 1/4 =
  16. 16.A bottle has 2/3 litre of juice. Aarav drinks 1/7 litre. How much juice is left (in litres)? =
  17. 17.1/3 − 2/7 =
  18. 18.Rohan has a ribbon 2/3 m long and cuts off 1/7 m. How long is the ribbon now (in m)? =
  19. 19.Sara has a ribbon 3/4 m long and cuts off 5/8 m. How long is the ribbon now (in m)? =
  20. 20.4/5 − 2/3 =
  21. 21.A bottle has 1/4 litre of juice. Tara drinks 1/7 litre. How much juice is left (in litres)? =
  22. 22.A bottle has 6/7 litre of juice. Tara drinks 3/4 litre. How much juice is left (in litres)? =
  23. 23.5/6 − 4/9 =
  24. 24.A tank is 5/6 full of water. Then water filling 3/8 of the tank is used. What fraction of the tank is full now? =
  25. 25.A tank is 4/5 full of water. Then water filling 3/10 of the tank is used. What fraction of the tank is full now? =
  26. 26.Arjun has a ribbon 5/6 m long and cuts off 4/9 m. How long is the ribbon now (in m)? =
  27. 27.3/10 − 1/4 =
  28. 28.9/10 − 3/4 =
  29. 29.A tank is 1/3 full of water. Then water filling 1/7 of the tank is used. What fraction of the tank is full now? =
  30. 30.9/10 − 1/5 =
  31. 31.2/3 − 5/8 =
  32. 32.Sara has a ribbon 7/9 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  33. 33.8/9 − 5/6 =
  34. 34.5/7 − 1/2 =
  35. 35.A bottle has 3/4 litre of juice. Sara drinks 7/10 litre. How much juice is left (in litres)? =
  36. 36.A bottle has 1/2 litre of juice. Tara drinks 1/10 litre. How much juice is left (in litres)? =
  37. 37.A tank is 3/8 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  38. 38.A bottle has 5/7 litre of juice. Kabir drinks 1/4 litre. How much juice is left (in litres)? =
  39. 39.5/9 − 1/6 =
  40. 40.A bottle has 1/3 litre of juice. Tara drinks 2/9 litre. How much juice is left (in litres)? =

Answer key

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

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