← Subtracting fractions: different denominators lesson New set →

Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 973 · 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 bottle has 9/10 litre of juice. Diya drinks 3/4 litre. How much juice is left (in litres)? =
  2. 2.5/6 − 3/10 =
  3. 3.Vihaan has a ribbon 3/4 m long and cuts off 1/8 m. How long is the ribbon now (in m)? =
  4. 4.1/4 − 1/10 =
  5. 5.A tank is 3/4 full of water. Then water filling 2/5 of the tank is used. What fraction of the tank is full now? =
  6. 6.1/4 − 1/7 =
  7. 7.5/6 − 7/9 =
  8. 8.2/3 − 2/7 =
  9. 9.6/7 − 1/4 =
  10. 10.9/10 − 3/4 =
  11. 11.6/7 − 1/2 =
  12. 12.3/4 − 4/7 =
  13. 13.9/10 − 2/5 =
  14. 14.4/5 − 3/4 =
  15. 15.1/3 − 1/8 =
  16. 16.9/10 − 2/3 =
  17. 17.A bottle has 1/2 litre of juice. Vihaan drinks 3/7 litre. How much juice is left (in litres)? =
  18. 18.A tank is 4/5 full of water. Then water filling 3/10 of the tank is used. What fraction of the tank is full now? =
  19. 19.6/7 − 2/3 =
  20. 20.A tank is 2/5 full of water. Then water filling 3/10 of the tank is used. What fraction of the tank is full now? =
  21. 21.5/6 − 2/3 =
  22. 22.6/7 − 3/4 =
  23. 23.4/5 − 3/10 =
  24. 24.1/2 − 2/7 =
  25. 25.Riya has a ribbon 8/9 m long and cuts off 2/3 m. How long is the ribbon now (in m)? =
  26. 26.8/9 − 1/6 =
  27. 27.1/2 − 1/7 =
  28. 28.1/3 − 1/9 =
  29. 29.A bottle has 2/3 litre of juice. Anaya drinks 2/7 litre. How much juice is left (in litres)? =
  30. 30.1/2 − 3/7 =
  31. 31.3/5 − 1/6 =
  32. 32.Aarav has a ribbon 7/8 m long and cuts off 5/6 m. How long is the ribbon now (in m)? =
  33. 33.Diya has a ribbon 5/6 m long and cuts off 2/5 m. How long is the ribbon now (in m)? =
  34. 34.A bottle has 1/3 litre of juice. Sara drinks 1/7 litre. How much juice is left (in litres)? =
  35. 35.7/10 − 1/4 =
  36. 36.A bottle has 1/3 litre of juice. Aarav drinks 2/7 litre. How much juice is left (in litres)? =
  37. 37.A bottle has 7/8 litre of juice. Tara drinks 5/6 litre. How much juice is left (in litres)? =
  38. 38.3/7 − 1/4 =
  39. 39.A tank is 5/9 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 3/10 of the tank is used. What fraction of the tank is full now? =

Answer key

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

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