← Subtracting fractions: different denominators lesson New set →

Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 946 · 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 − 5/7 =
  2. 2.Tara has a ribbon 7/9 m long and cuts off 1/2 m. How long is the ribbon now (in m)? =
  3. 3.Vihaan has a ribbon 4/7 m long and cuts off 1/2 m. How long is the ribbon now (in m)? =
  4. 4.7/9 − 2/3 =
  5. 5.5/6 − 4/9 =
  6. 6.A bottle has 2/3 litre of juice. Ishaan drinks 5/9 litre. How much juice is left (in litres)? =
  7. 7.A bottle has 8/9 litre of juice. Rohan drinks 2/3 litre. How much juice is left (in litres)? =
  8. 8.Ishaan has a ribbon 9/10 m long and cuts off 4/5 m. How long is the ribbon now (in m)? =
  9. 9.1/2 − 1/5 =
  10. 10.1/2 − 2/7 =
  11. 11.1/3 − 1/4 =
  12. 12.5/9 − 1/2 =
  13. 13.A tank is 1/2 full of water. Then water filling 1/4 of the tank is used. What fraction of the tank is full now? =
  14. 14.2/3 − 3/7 =
  15. 15.A bottle has 9/10 litre of juice. Sara drinks 1/6 litre. How much juice is left (in litres)? =
  16. 16.A tank is 2/3 full of water. Then water filling 1/4 of the tank is used. What fraction of the tank is full now? =
  17. 17.3/7 − 1/4 =
  18. 18.3/10 − 1/6 =
  19. 19.1/2 − 1/3 =
  20. 20.Diya has a ribbon 4/5 m long and cuts off 1/10 m. How long is the ribbon now (in m)? =
  21. 21.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? =
  22. 22.6/7 − 1/2 =
  23. 23.3/5 − 1/3 =
  24. 24.Arjun has a ribbon 1/3 m long and cuts off 1/9 m. How long is the ribbon now (in m)? =
  25. 25.1/2 − 3/8 =
  26. 26.A bottle has 1/6 litre of juice. Rohan drinks 1/9 litre. How much juice is left (in litres)? =
  27. 27.Tara has a ribbon 3/4 m long and cuts off 3/10 m. How long is the ribbon now (in m)? =
  28. 28.7/10 − 3/5 =
  29. 29.A bottle has 9/10 litre of juice. Riya drinks 1/2 litre. How much juice is left (in litres)? =
  30. 30.1/6 − 1/9 =
  31. 31.A tank is 3/10 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  32. 32.5/6 − 4/5 =
  33. 33.A bottle has 2/3 litre of juice. Anaya drinks 1/8 litre. How much juice is left (in litres)? =
  34. 34.A tank is 6/7 full of water. Then water filling 3/4 of the tank is used. What fraction of the tank is full now? =
  35. 35.9/10 − 2/3 =
  36. 36.3/4 − 3/7 =
  37. 37.Diya has a ribbon 4/5 m long and cuts off 2/3 m. How long is the ribbon now (in m)? =
  38. 38.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? =
  39. 39.9/10 − 3/5 =
  40. 40.A bottle has 9/10 litre of juice. Tara drinks 3/5 litre. How much juice is left (in litres)? =

Answer key

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

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