← Subtracting fractions: different denominators lesson New set →

Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 765 · 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. 1.5/6 − 5/8 =
  2. 2.A bottle has 2/7 litre of juice. Vihaan drinks 1/4 litre. How much juice is left (in litres)? =
  3. 3.3/4 − 1/5 =
  4. 4.A bottle has 5/8 litre of juice. Diya drinks 1/4 litre. How much juice is left (in litres)? =
  5. 5.6/7 − 3/4 =
  6. 6.Aarav has a ribbon 1/2 m long and cuts off 1/5 m. How long is the ribbon now (in m)? =
  7. 7.Vihaan has a ribbon 1/3 m long and cuts off 2/9 m. How long is the ribbon now (in m)? =
  8. 8.A tank is 2/3 full of water. Then water filling 5/8 of the tank is used. What fraction of the tank is full now? =
  9. 9.1/4 − 1/10 =
  10. 10.3/4 − 1/8 =
  11. 11.5/8 − 1/4 =
  12. 12.7/8 − 1/3 =
  13. 13.2/3 − 5/9 =
  14. 14.5/9 − 1/2 =
  15. 15.9/10 − 1/4 =
  16. 16.2/5 − 1/6 =
  17. 17.4/9 − 1/6 =
  18. 18.4/5 − 1/3 =
  19. 19.Riya has a ribbon 7/9 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  20. 20.2/3 − 3/10 =
  21. 21.A bottle has 3/4 litre of juice. Diya drinks 1/5 litre. How much juice is left (in litres)? =
  22. 22.1/4 − 1/8 =
  23. 23.5/6 − 5/9 =
  24. 24.A bottle has 2/3 litre of juice. Tara drinks 3/10 litre. How much juice is left (in litres)? =
  25. 25.8/9 − 2/3 =
  26. 26.3/4 − 1/2 =
  27. 27.A tank is 2/3 full of water. Then water filling 2/9 of the tank is used. What fraction of the tank is full now? =
  28. 28.A bottle has 7/10 litre of juice. Ishaan drinks 1/5 litre. How much juice is left (in litres)? =
  29. 29.3/4 − 3/8 =
  30. 30.4/7 − 1/3 =
  31. 31.1/3 − 1/10 =
  32. 32.A bottle has 9/10 litre of juice. Ishaan drinks 1/3 litre. How much juice is left (in litres)? =
  33. 33.A tank is 7/10 full of water. Then water filling 1/5 of the tank is used. What fraction of the tank is full now? =
  34. 34.A bottle has 2/3 litre of juice. Arjun drinks 2/9 litre. How much juice is left (in litres)? =
  35. 35.2/3 − 3/5 =
  36. 36.Anaya has a ribbon 3/5 m long and cuts off 3/10 m. How long is the ribbon now (in m)? =
  37. 37.A tank is 5/7 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  38. 38.9/10 − 5/6 =
  39. 39.5/6 − 1/9 =
  40. 40.3/10 − 1/5 =

Answer key

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

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