← Subtracting fractions: different denominators lesson New set →

Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 375 · 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. 1.7/10 − 2/3 =
  2. 2.1/4 − 1/5 =
  3. 3.7/10 − 2/5 =
  4. 4.A bottle has 3/10 litre of juice. Meera drinks 1/5 litre. How much juice is left (in litres)? =
  5. 5.A bottle has 4/5 litre of juice. Riya drinks 1/2 litre. How much juice is left (in litres)? =
  6. 6.A bottle has 4/5 litre of juice. Diya drinks 3/10 litre. How much juice is left (in litres)? =
  7. 7.3/4 − 3/5 =
  8. 8.1/2 − 1/5 =
  9. 9.A tank is 1/2 full of water. Then water filling 1/5 of the tank is used. What fraction of the tank is full now? =
  10. 10.3/8 − 1/6 =
  11. 11.3/4 − 1/3 =
  12. 12.A bottle has 3/5 litre of juice. Diya drinks 1/6 litre. How much juice is left (in litres)? =
  13. 13.2/3 − 2/5 =
  14. 14.Arjun has a ribbon 5/6 m long and cuts off 7/9 m. How long is the ribbon now (in m)? =
  15. 15.2/3 − 2/7 =
  16. 16.2/3 − 1/7 =
  17. 17.9/10 − 3/5 =
  18. 18.7/8 − 1/3 =
  19. 19.7/9 − 1/6 =
  20. 20.1/3 − 1/8 =
  21. 21.1/2 − 2/7 =
  22. 22.8/9 − 1/3 =
  23. 23.5/8 − 1/4 =
  24. 24.A bottle has 2/5 litre of juice. Ishaan drinks 1/3 litre. How much juice is left (in litres)? =
  25. 25.4/7 − 1/2 =
  26. 26.2/3 − 1/9 =
  27. 27.A bottle has 1/6 litre of juice. Kabir drinks 1/9 litre. How much juice is left (in litres)? =
  28. 28.5/7 − 1/2 =
  29. 29.A tank is 5/9 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  30. 30.Aarav has a ribbon 5/7 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  31. 31.2/5 − 1/3 =
  32. 32.A tank is 5/6 full of water. Then water filling 2/9 of the tank is used. What fraction of the tank is full now? =
  33. 33.5/6 − 3/8 =
  34. 34.A tank is 1/2 full of water. Then water filling 1/8 of the tank is used. What fraction of the tank is full now? =
  35. 35.5/9 − 1/6 =
  36. 36.1/2 − 1/9 =
  37. 37.Anaya has a ribbon 1/3 m long and cuts off 1/9 m. How long is the ribbon now (in m)? =
  38. 38.1/3 − 2/9 =
  39. 39.A bottle has 2/3 litre of juice. Kabir drinks 1/7 litre. How much juice is left (in litres)? =
  40. 40.1/4 − 1/7 =

Answer key

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

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