← Subtracting fractions: different denominators lesson New set →

Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 88 · 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. 1.3/4 − 1/2 =
  2. 2.Anaya has a ribbon 1/3 m long and cuts off 3/10 m. How long is the ribbon now (in m)? =
  3. 3.A bottle has 5/9 litre of juice. Kabir drinks 1/6 litre. How much juice is left (in litres)? =
  4. 4.1/3 − 1/4 =
  5. 5.A tank is 1/2 full of water. Then water filling 4/9 of the tank is used. What fraction of the tank is full now? =
  6. 6.A tank is 4/5 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  7. 7.1/3 − 1/9 =
  8. 8.Tara has a ribbon 4/5 m long and cuts off 1/2 m. How long is the ribbon now (in m)? =
  9. 9.A bottle has 8/9 litre of juice. Ishaan drinks 1/3 litre. How much juice is left (in litres)? =
  10. 10.Aarav has a ribbon 8/9 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  11. 11.Kabir has a ribbon 3/7 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  12. 12.5/6 − 7/10 =
  13. 13.5/9 − 1/3 =
  14. 14.4/5 − 1/2 =
  15. 15.2/3 − 1/6 =
  16. 16.Tara has a ribbon 1/3 m long and cuts off 2/9 m. How long is the ribbon now (in m)? =
  17. 17.2/3 − 1/8 =
  18. 18.Diya has a ribbon 1/2 m long and cuts off 1/9 m. How long is the ribbon now (in m)? =
  19. 19.A bottle has 4/7 litre of juice. Sara drinks 1/3 litre. How much juice is left (in litres)? =
  20. 20.A bottle has 6/7 litre of juice. Aarav drinks 2/3 litre. How much juice is left (in litres)? =
  21. 21.Aarav has a ribbon 2/5 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  22. 22.A tank is 7/9 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  23. 23.2/9 − 1/6 =
  24. 24.3/5 − 1/3 =
  25. 25.2/5 − 1/6 =
  26. 26.1/2 − 1/7 =
  27. 27.8/9 − 1/2 =
  28. 28.3/7 − 1/3 =
  29. 29.A tank is 5/8 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  30. 30.Tara has a ribbon 3/4 m long and cuts off 2/3 m. How long is the ribbon now (in m)? =
  31. 31.A tank is 2/3 full of water. Then water filling 1/9 of the tank is used. What fraction of the tank is full now? =
  32. 32.1/2 − 3/7 =
  33. 33.9/10 − 1/3 =
  34. 34.5/7 − 1/2 =
  35. 35.A tank is 5/6 full of water. Then water filling 7/10 of the tank is used. What fraction of the tank is full now? =
  36. 36.Kabir has a ribbon 5/6 m long and cuts off 5/9 m. How long is the ribbon now (in m)? =
  37. 37.2/3 − 2/7 =
  38. 38.4/5 − 1/10 =
  39. 39.8/9 − 5/6 =
  40. 40.Aarav has a ribbon 5/6 m long and cuts off 2/9 m. How long is the ribbon now (in m)? =

Answer key

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

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