← Subtracting fractions: different denominators lesson New set →

Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 764 · 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. 1.5/7 − 1/4 =
  2. 2.1/5 − 1/6 =
  3. 3.A tank is 1/3 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  4. 4.3/4 − 3/7 =
  5. 5.A bottle has 1/4 litre of juice. Anaya drinks 1/5 litre. How much juice is left (in litres)? =
  6. 6.6/7 − 3/4 =
  7. 7.Vihaan has a ribbon 7/8 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  8. 8.5/6 − 2/9 =
  9. 9.6/7 − 1/2 =
  10. 10.6/7 − 2/3 =
  11. 11.2/3 − 1/7 =
  12. 12.Ishaan has a ribbon 5/6 m long and cuts off 1/10 m. How long is the ribbon now (in m)? =
  13. 13.3/4 − 3/5 =
  14. 14.A bottle has 1/3 litre of juice. Sara drinks 1/8 litre. How much juice is left (in litres)? =
  15. 15.7/9 − 1/6 =
  16. 16.2/5 − 1/3 =
  17. 17.1/4 − 1/10 =
  18. 18.5/9 − 1/2 =
  19. 19.A bottle has 7/8 litre of juice. Ishaan drinks 5/6 litre. How much juice is left (in litres)? =
  20. 20.4/5 − 3/10 =
  21. 21.5/6 − 7/9 =
  22. 22.A bottle has 3/5 litre of juice. Diya drinks 1/6 litre. How much juice is left (in litres)? =
  23. 23.1/2 − 2/7 =
  24. 24.A bottle has 5/6 litre of juice. Kabir drinks 1/8 litre. How much juice is left (in litres)? =
  25. 25.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? =
  26. 26.A bottle has 7/9 litre of juice. Aarav drinks 1/6 litre. How much juice is left (in litres)? =
  27. 27.Kabir has a ribbon 2/5 m long and cuts off 3/10 m. How long is the ribbon now (in m)? =
  28. 28.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? =
  29. 29.A bottle has 2/3 litre of juice. Meera drinks 4/9 litre. How much juice is left (in litres)? =
  30. 30.7/8 − 2/3 =
  31. 31.A tank is 7/8 full of water. Then water filling 1/4 of the tank is used. What fraction of the tank is full now? =
  32. 32.A tank is 6/7 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  33. 33.4/7 − 1/4 =
  34. 34.2/3 − 1/10 =
  35. 35.A bottle has 1/2 litre of juice. Riya drinks 1/3 litre. How much juice is left (in litres)? =
  36. 36.5/8 − 1/4 =
  37. 37.Tara has a ribbon 3/7 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  38. 38.Diya has a ribbon 8/9 m long and cuts off 5/6 m. How long is the ribbon now (in m)? =
  39. 39.Kabir has a ribbon 1/2 m long and cuts off 2/7 m. How long is the ribbon now (in m)? =
  40. 40.3/4 − 1/7 =

Answer key

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

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