← Subtracting fractions: different denominators lesson New set →

Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 758 · 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 − 2/9 =
  2. 2.Kabir has a ribbon 5/6 m long and cuts off 1/5 m. How long is the ribbon now (in m)? =
  3. 3.8/9 − 2/3 =
  4. 4.A tank is 1/3 full of water. Then water filling 1/5 of the tank is used. What fraction of the tank is full now? =
  5. 5.5/6 − 1/8 =
  6. 6.3/5 − 1/2 =
  7. 7.Rohan has a ribbon 5/6 m long and cuts off 1/9 m. How long is the ribbon now (in m)? =
  8. 8.8/9 − 1/3 =
  9. 9.A tank is 3/5 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  10. 10.A tank is 3/5 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  11. 11.A tank is 1/3 full of water. Then water filling 1/10 of the tank is used. What fraction of the tank is full now? =
  12. 12.2/3 − 2/9 =
  13. 13.Diya has a ribbon 5/8 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  14. 14.A bottle has 2/5 litre of juice. Anaya drinks 1/4 litre. How much juice is left (in litres)? =
  15. 15.A tank is 1/2 full of water. Then water filling 1/7 of the tank is used. What fraction of the tank is full now? =
  16. 16.1/4 − 1/7 =
  17. 17.A tank is 3/4 full of water. Then water filling 2/7 of the tank is used. What fraction of the tank is full now? =
  18. 18.5/8 − 1/3 =
  19. 19.4/5 − 1/6 =
  20. 20.A bottle has 7/8 litre of juice. Kabir drinks 2/3 litre. How much juice is left (in litres)? =
  21. 21.1/3 − 3/10 =
  22. 22.A tank is 3/5 full of water. Then water filling 1/2 of the tank is used. What fraction of the tank is full now? =
  23. 23.A bottle has 5/9 litre of juice. Ishaan drinks 1/2 litre. How much juice is left (in litres)? =
  24. 24.4/9 − 1/3 =
  25. 25.3/4 − 1/7 =
  26. 26.7/8 − 1/6 =
  27. 27.Aarav has a ribbon 5/8 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  28. 28.3/4 − 2/7 =
  29. 29.4/5 − 1/2 =
  30. 30.Diya has a ribbon 1/2 m long and cuts off 1/8 m. How long is the ribbon now (in m)? =
  31. 31.2/5 − 1/3 =
  32. 32.1/5 − 1/10 =
  33. 33.Tara has a ribbon 6/7 m long and cuts off 1/2 m. How long is the ribbon now (in m)? =
  34. 34.8/9 − 1/6 =
  35. 35.Aarav has a ribbon 3/4 m long and cuts off 3/8 m. How long is the ribbon now (in m)? =
  36. 36.3/4 − 3/8 =
  37. 37.9/10 − 4/5 =
  38. 38.Diya has a ribbon 7/10 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  39. 39.A tank is 5/6 full of water. Then water filling 3/10 of the tank is used. What fraction of the tank is full now? =
  40. 40.Ishaan has a ribbon 5/6 m long and cuts off 7/10 m. How long is the ribbon now (in m)? =

Answer key

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

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