← Subtracting fractions: different denominators lesson New set →

Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 914 · 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. 1.7/10 − 2/3 =
  2. 2.3/5 − 1/10 =
  3. 3.A bottle has 5/7 litre of juice. Arjun drinks 1/3 litre. How much juice is left (in litres)? =
  4. 4.A bottle has 9/10 litre of juice. Kabir drinks 1/5 litre. How much juice is left (in litres)? =
  5. 5.A tank is 1/3 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  6. 6.A tank is 7/8 full of water. Then water filling 3/4 of the tank is used. What fraction of the tank is full now? =
  7. 7.A bottle has 5/6 litre of juice. Anaya drinks 1/4 litre. How much juice is left (in litres)? =
  8. 8.3/4 − 5/7 =
  9. 9.8/9 − 1/2 =
  10. 10.A bottle has 5/8 litre of juice. Rohan drinks 1/2 litre. How much juice is left (in litres)? =
  11. 11.5/8 − 1/2 =
  12. 12.2/3 − 2/7 =
  13. 13.A bottle has 1/2 litre of juice. Diya drinks 1/10 litre. How much juice is left (in litres)? =
  14. 14.A bottle has 5/6 litre of juice. Kabir drinks 2/9 litre. How much juice is left (in litres)? =
  15. 15.A tank is 5/6 full of water. Then water filling 5/8 of the tank is used. What fraction of the tank is full now? =
  16. 16.2/3 − 3/10 =
  17. 17.3/7 − 1/4 =
  18. 18.1/3 − 1/7 =
  19. 19.Sara has a ribbon 4/5 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  20. 20.A bottle has 7/8 litre of juice. Arjun drinks 1/4 litre. How much juice is left (in litres)? =
  21. 21.A tank is 5/6 full of water. Then water filling 1/2 of the tank is used. What fraction of the tank is full now? =
  22. 22.Tara has a ribbon 5/6 m long and cuts off 3/8 m. How long is the ribbon now (in m)? =
  23. 23.7/8 − 1/2 =
  24. 24.1/6 − 1/10 =
  25. 25.Meera has a ribbon 4/9 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  26. 26.A bottle has 5/7 litre of juice. Rohan drinks 1/2 litre. How much juice is left (in litres)? =
  27. 27.9/10 − 1/4 =
  28. 28.4/5 − 1/6 =
  29. 29.4/5 − 1/3 =
  30. 30.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? =
  31. 31.3/4 − 1/10 =
  32. 32.5/6 − 3/8 =
  33. 33.Kabir has a ribbon 8/9 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  34. 34.3/10 − 1/5 =
  35. 35.Arjun has a ribbon 5/9 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  36. 36.A bottle has 5/7 litre of juice. Anaya drinks 1/3 litre. How much juice is left (in litres)? =
  37. 37.Sara has a ribbon 3/4 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  38. 38.6/7 − 3/4 =
  39. 39.1/2 − 1/5 =
  40. 40.Ishaan has a ribbon 1/3 m long and cuts off 2/7 m. How long is the ribbon now (in m)? =

Answer key

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

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