← Subtracting fractions: different denominators lesson New set →

Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 116 · 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.Riya has a ribbon 7/10 m long and cuts off 3/5 m. How long is the ribbon now (in m)? =
  2. 2.A bottle has 3/4 litre of juice. Ishaan drinks 1/8 litre. How much juice is left (in litres)? =
  3. 3.1/6 − 1/9 =
  4. 4.Tara has a ribbon 2/3 m long and cuts off 2/5 m. How long is the ribbon now (in m)? =
  5. 5.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? =
  6. 6.A bottle has 4/5 litre of juice. Meera drinks 1/2 litre. How much juice is left (in litres)? =
  7. 7.A bottle has 8/9 litre of juice. Kabir drinks 5/6 litre. How much juice is left (in litres)? =
  8. 8.A tank is 7/8 full of water. Then water filling 3/4 of the tank is used. What fraction of the tank is full now? =
  9. 9.2/3 − 2/5 =
  10. 10.3/5 − 1/10 =
  11. 11.A bottle has 3/5 litre of juice. Riya drinks 1/6 litre. How much juice is left (in litres)? =
  12. 12.A bottle has 2/5 litre of juice. Arjun drinks 1/10 litre. How much juice is left (in litres)? =
  13. 13.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? =
  14. 14.A tank is 2/3 full of water. Then water filling 3/5 of the tank is used. What fraction of the tank is full now? =
  15. 15.A tank is 3/4 full of water. Then water filling 2/5 of the tank is used. What fraction of the tank is full now? =
  16. 16.4/5 − 1/3 =
  17. 17.Vihaan has a ribbon 2/3 m long and cuts off 4/7 m. How long is the ribbon now (in m)? =
  18. 18.Aarav has a ribbon 1/2 m long and cuts off 1/7 m. How long is the ribbon now (in m)? =
  19. 19.2/3 − 1/7 =
  20. 20.Sara has a ribbon 5/9 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  21. 21.3/4 − 1/7 =
  22. 22.5/6 − 1/3 =
  23. 23.A tank is 5/6 full of water. Then water filling 2/5 of the tank is used. What fraction of the tank is full now? =
  24. 24.1/2 − 1/9 =
  25. 25.A tank is 4/7 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  26. 26.A bottle has 3/4 litre of juice. Vihaan drinks 1/2 litre. How much juice is left (in litres)? =
  27. 27.A bottle has 4/7 litre of juice. Tara drinks 1/2 litre. How much juice is left (in litres)? =
  28. 28.Sara has a ribbon 5/6 m long and cuts off 7/9 m. How long is the ribbon now (in m)? =
  29. 29.Sara has a ribbon 4/7 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  30. 30.A bottle has 5/7 litre of juice. Arjun drinks 1/4 litre. How much juice is left (in litres)? =
  31. 31.A bottle has 3/4 litre of juice. Riya drinks 4/7 litre. How much juice is left (in litres)? =
  32. 32.1/3 − 2/9 =
  33. 33.1/6 − 1/10 =
  34. 34.3/4 − 2/7 =
  35. 35.3/4 − 1/3 =
  36. 36.A bottle has 5/8 litre of juice. Vihaan drinks 1/6 litre. How much juice is left (in litres)? =
  37. 37.Sara has a ribbon 3/4 m long and cuts off 1/10 m. How long is the ribbon now (in m)? =
  38. 38.7/8 − 1/4 =
  39. 39.A tank is 7/9 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  40. 40.Aarav has a ribbon 3/5 m long and cuts off 1/10 m. How long is the ribbon now (in m)? =

Answer key

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

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