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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 110 · 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 9/10 full of water. Then water filling 1/5 of the tank is used. What fraction of the tank is full now? =
  2. 2.Aarav has a ribbon 4/9 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  3. 3.A bottle has 9/10 litre of juice. Sara drinks 1/3 litre. How much juice is left (in litres)? =
  4. 4.2/3 − 1/8 =
  5. 5.5/6 − 1/9 =
  6. 6.5/7 − 1/2 =
  7. 7.1/4 − 1/5 =
  8. 8.5/6 − 1/2 =
  9. 9.5/9 − 1/3 =
  10. 10.1/4 − 1/7 =
  11. 11.A bottle has 7/8 litre of juice. Kabir drinks 1/3 litre. How much juice is left (in litres)? =
  12. 12.3/5 − 3/10 =
  13. 13.7/10 − 3/5 =
  14. 14.A bottle has 7/10 litre of juice. Kabir drinks 3/5 litre. How much juice is left (in litres)? =
  15. 15.A bottle has 1/3 litre of juice. Rohan drinks 1/8 litre. How much juice is left (in litres)? =
  16. 16.9/10 − 1/4 =
  17. 17.A bottle has 6/7 litre of juice. Vihaan drinks 2/3 litre. How much juice is left (in litres)? =
  18. 18.3/5 − 1/10 =
  19. 19.A tank is 9/10 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  20. 20.5/7 − 1/4 =
  21. 21.1/3 − 2/9 =
  22. 22.A bottle has 1/2 litre of juice. Aarav drinks 1/9 litre. How much juice is left (in litres)? =
  23. 23.2/7 − 1/4 =
  24. 24.A bottle has 5/6 litre of juice. Anaya drinks 4/5 litre. How much juice is left (in litres)? =
  25. 25.A tank is 2/3 full of water. Then water filling 1/8 of the tank is used. What fraction of the tank is full now? =
  26. 26.1/2 − 3/10 =
  27. 27.1/2 − 1/7 =
  28. 28.A bottle has 2/3 litre of juice. Rohan drinks 2/9 litre. How much juice is left (in litres)? =
  29. 29.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? =
  30. 30.2/3 − 2/5 =
  31. 31.Meera has a ribbon 5/7 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  32. 32.A bottle has 5/6 litre of juice. Meera drinks 5/9 litre. How much juice is left (in litres)? =
  33. 33.A tank is 3/5 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  34. 34.1/3 − 1/4 =
  35. 35.A bottle has 1/2 litre of juice. Diya drinks 1/6 litre. How much juice is left (in litres)? =
  36. 36.A tank is 5/6 full of water. Then water filling 5/8 of the tank is used. What fraction of the tank is full now? =
  37. 37.A bottle has 3/4 litre of juice. Meera drinks 3/8 litre. How much juice is left (in litres)? =
  38. 38.4/5 − 7/10 =
  39. 39.Meera has a ribbon 3/4 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  40. 40.7/9 − 1/3 =

Answer key

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

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