← Subtracting fractions: different denominators lesson New set →

Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 237 · 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. 1.4/7 − 1/2 =
  2. 2.2/3 − 3/7 =
  3. 3.7/10 − 1/6 =
  4. 4.5/6 − 1/8 =
  5. 5.A bottle has 3/8 litre of juice. Diya drinks 1/4 litre. How much juice is left (in litres)? =
  6. 6.3/7 − 1/3 =
  7. 7.A bottle has 4/5 litre of juice. Vihaan drinks 1/3 litre. How much juice is left (in litres)? =
  8. 8.7/9 − 1/3 =
  9. 9.7/10 − 2/5 =
  10. 10.4/5 − 1/2 =
  11. 11.9/10 − 3/5 =
  12. 12.5/6 − 1/9 =
  13. 13.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? =
  14. 14.3/4 − 1/5 =
  15. 15.7/10 − 1/2 =
  16. 16.6/7 − 1/4 =
  17. 17.4/9 − 1/6 =
  18. 18.A bottle has 3/10 litre of juice. Rohan drinks 1/5 litre. How much juice is left (in litres)? =
  19. 19.Kabir has a ribbon 3/4 m long and cuts off 3/8 m. How long is the ribbon now (in m)? =
  20. 20.1/3 − 1/5 =
  21. 21.7/8 − 2/3 =
  22. 22.A tank is 3/4 full of water. Then water filling 7/10 of the tank is used. What fraction of the tank is full now? =
  23. 23.A bottle has 4/9 litre of juice. Arjun drinks 1/3 litre. How much juice is left (in litres)? =
  24. 24.3/5 − 1/3 =
  25. 25.A bottle has 1/4 litre of juice. Meera drinks 1/5 litre. How much juice is left (in litres)? =
  26. 26.1/5 − 1/10 =
  27. 27.Anaya has a ribbon 4/5 m long and cuts off 3/10 m. How long is the ribbon now (in m)? =
  28. 28.5/6 − 7/9 =
  29. 29.7/10 − 2/3 =
  30. 30.1/4 − 1/7 =
  31. 31.A bottle has 6/7 litre of juice. Aarav drinks 2/3 litre. How much juice is left (in litres)? =
  32. 32.Meera has a ribbon 5/6 m long and cuts off 5/8 m. How long is the ribbon now (in m)? =
  33. 33.A tank is 3/4 full of water. Then water filling 3/7 of the tank is used. What fraction of the tank is full now? =
  34. 34.5/6 − 1/10 =
  35. 35.2/3 − 4/9 =
  36. 36.2/7 − 1/4 =
  37. 37.A bottle has 5/7 litre of juice. Tara drinks 1/2 litre. How much juice is left (in litres)? =
  38. 38.6/7 − 1/3 =
  39. 39.A tank is 5/7 full of water. Then water filling 1/2 of the tank is used. What fraction of the tank is full now? =
  40. 40.A tank is 3/5 full of water. Then water filling 1/10 of the tank is used. What fraction of the tank is full now? =

Answer key

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

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