← Subtracting fractions: different denominators lesson New set →

Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 362 · 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. 1.4/5 − 3/10 =
  2. 2.Riya has a ribbon 1/6 m long and cuts off 1/8 m. How long is the ribbon now (in m)? =
  3. 3.3/10 − 1/6 =
  4. 4.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? =
  5. 5.Tara has a ribbon 6/7 m long and cuts off 2/3 m. How long is the ribbon now (in m)? =
  6. 6.3/4 − 3/7 =
  7. 7.4/5 − 3/4 =
  8. 8.A tank is 2/5 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  9. 9.7/10 − 2/5 =
  10. 10.Aarav has a ribbon 7/10 m long and cuts off 2/3 m. How long is the ribbon now (in m)? =
  11. 11.1/5 − 1/6 =
  12. 12.3/4 − 5/8 =
  13. 13.3/7 − 1/3 =
  14. 14.7/10 − 3/5 =
  15. 15.2/3 − 4/7 =
  16. 16.8/9 − 1/6 =
  17. 17.5/9 − 1/3 =
  18. 18.2/3 − 2/7 =
  19. 19.A tank is 5/9 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  20. 20.Arjun has a ribbon 1/6 m long and cuts off 1/10 m. How long is the ribbon now (in m)? =
  21. 21.Anaya has a ribbon 7/8 m long and cuts off 3/4 m. How long is the ribbon now (in m)? =
  22. 22.6/7 − 1/4 =
  23. 23.1/2 − 1/7 =
  24. 24.A tank is 5/6 full of water. Then water filling 4/5 of the tank is used. What fraction of the tank is full now? =
  25. 25.5/6 − 5/8 =
  26. 26.1/2 − 1/5 =
  27. 27.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? =
  28. 28.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? =
  29. 29.A bottle has 3/8 litre of juice. Diya drinks 1/4 litre. How much juice is left (in litres)? =
  30. 30.A bottle has 6/7 litre of juice. Sara drinks 1/3 litre. How much juice is left (in litres)? =
  31. 31.Arjun has a ribbon 7/9 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  32. 32.1/5 − 1/10 =
  33. 33.Kabir has a ribbon 3/4 m long and cuts off 1/5 m. How long is the ribbon now (in m)? =
  34. 34.4/9 − 1/6 =
  35. 35.5/9 − 1/2 =
  36. 36.Rohan has a ribbon 1/2 m long and cuts off 3/7 m. How long is the ribbon now (in m)? =
  37. 37.Aarav has a ribbon 3/4 m long and cuts off 4/7 m. How long is the ribbon now (in m)? =
  38. 38.5/6 − 7/9 =
  39. 39.Diya has a ribbon 1/3 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  40. 40.3/4 − 5/7 =

Answer key

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

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