← Subtracting fractions: different denominators lesson New set →

Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 775 · 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. 1.2/3 − 3/5 =
  2. 2.Aarav has a ribbon 5/9 m long and cuts off 1/2 m. How long is the ribbon now (in m)? =
  3. 3.9/10 − 1/3 =
  4. 4.3/7 − 1/3 =
  5. 5.8/9 − 1/3 =
  6. 6.Diya has a ribbon 8/9 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  7. 7.5/6 − 1/2 =
  8. 8.A bottle has 2/5 litre of juice. Anaya drinks 1/4 litre. How much juice is left (in litres)? =
  9. 9.Meera has a ribbon 4/5 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  10. 10.4/9 − 1/6 =
  11. 11.9/10 − 3/4 =
  12. 12.7/9 − 2/3 =
  13. 13.1/4 − 1/8 =
  14. 14.A tank is 3/8 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  15. 15.5/8 − 1/2 =
  16. 16.4/5 − 1/3 =
  17. 17.3/4 − 5/7 =
  18. 18.A bottle has 6/7 litre of juice. Sara drinks 2/3 litre. How much juice is left (in litres)? =
  19. 19.3/7 − 1/4 =
  20. 20.Aarav has a ribbon 3/5 m long and cuts off 1/10 m. How long is the ribbon now (in m)? =
  21. 21.Kabir has a ribbon 1/4 m long and cuts off 1/10 m. How long is the ribbon now (in m)? =
  22. 22.3/4 − 5/8 =
  23. 23.1/4 − 1/5 =
  24. 24.A bottle has 8/9 litre of juice. Anaya drinks 1/2 litre. How much juice is left (in litres)? =
  25. 25.A tank is 3/8 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  26. 26.6/7 − 3/4 =
  27. 27.A tank is 1/3 full of water. Then water filling 1/7 of the tank is used. What fraction of the tank is full now? =
  28. 28.Diya has a ribbon 7/10 m long and cuts off 1/2 m. How long is the ribbon now (in m)? =
  29. 29.Rohan has a ribbon 1/2 m long and cuts off 3/10 m. How long is the ribbon now (in m)? =
  30. 30.Diya has a ribbon 7/10 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  31. 31.Kabir has a ribbon 1/3 m long and cuts off 2/9 m. How long is the ribbon now (in m)? =
  32. 32.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? =
  33. 33.3/4 − 2/5 =
  34. 34.A tank is 5/8 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  35. 35.4/7 − 1/3 =
  36. 36.6/7 − 1/3 =
  37. 37.4/5 − 1/10 =
  38. 38.2/5 − 1/3 =
  39. 39.1/3 − 1/7 =
  40. 40.3/10 − 1/6 =

Answer key

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

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