← Subtracting fractions: different denominators lesson New set →

Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 20 · 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. 1.2/5 − 1/4 =
  2. 2.Kabir has a ribbon 3/5 m long and cuts off 1/2 m. How long is the ribbon now (in m)? =
  3. 3.1/2 − 1/6 =
  4. 4.A tank is 2/3 full of water. Then water filling 4/9 of the tank is used. What fraction of the tank is full now? =
  5. 5.6/7 − 3/4 =
  6. 6.2/3 − 5/9 =
  7. 7.3/4 − 3/7 =
  8. 8.9/10 − 5/6 =
  9. 9.A tank is 5/7 full of water. Then water filling 1/4 of the tank is used. What fraction of the tank is full now? =
  10. 10.9/10 − 2/5 =
  11. 11.1/6 − 1/8 =
  12. 12.A bottle has 9/10 litre of juice. Diya drinks 1/4 litre. How much juice is left (in litres)? =
  13. 13.1/2 − 1/9 =
  14. 14.A bottle has 1/3 litre of juice. Vihaan drinks 1/5 litre. How much juice is left (in litres)? =
  15. 15.3/4 − 4/7 =
  16. 16.2/5 − 1/3 =
  17. 17.4/9 − 1/3 =
  18. 18.6/7 − 1/3 =
  19. 19.9/10 − 4/5 =
  20. 20.4/9 − 1/6 =
  21. 21.A tank is 1/3 full of water. Then water filling 1/4 of the tank is used. What fraction of the tank is full now? =
  22. 22.1/4 − 1/8 =
  23. 23.A bottle has 3/4 litre of juice. Arjun drinks 1/3 litre. How much juice is left (in litres)? =
  24. 24.1/2 − 4/9 =
  25. 25.2/3 − 2/5 =
  26. 26.1/2 − 2/5 =
  27. 27.3/4 − 1/10 =
  28. 28.A tank is 2/3 full of water. Then water filling 1/7 of the tank is used. What fraction of the tank is full now? =
  29. 29.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? =
  30. 30.A tank is 4/7 full of water. Then water filling 1/2 of the tank is used. What fraction of the tank is full now? =
  31. 31.A tank is 1/4 full of water. Then water filling 1/7 of the tank is used. What fraction of the tank is full now? =
  32. 32.1/2 − 1/10 =
  33. 33.1/4 − 1/10 =
  34. 34.3/4 − 2/5 =
  35. 35.A bottle has 2/5 litre of juice. Kabir drinks 3/10 litre. How much juice is left (in litres)? =
  36. 36.3/4 − 1/5 =
  37. 37.A bottle has 2/3 litre of juice. Vihaan drinks 1/10 litre. How much juice is left (in litres)? =
  38. 38.2/3 − 3/10 =
  39. 39.A bottle has 2/3 litre of juice. Ishaan drinks 2/5 litre. How much juice is left (in litres)? =
  40. 40.Riya has a ribbon 9/10 m long and cuts off 1/5 m. How long is the ribbon now (in m)? =

Answer key

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

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