← Subtracting fractions: different denominators lesson New set →

Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 998 · 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.A bottle has 3/4 litre of juice. Kabir drinks 3/8 litre. How much juice is left (in litres)? =
  2. 2.3/4 − 5/7 =
  3. 3.A bottle has 3/4 litre of juice. Aarav drinks 1/8 litre. How much juice is left (in litres)? =
  4. 4.2/3 − 3/5 =
  5. 5.1/2 − 3/8 =
  6. 6.5/7 − 2/3 =
  7. 7.5/6 − 1/9 =
  8. 8.1/2 − 1/7 =
  9. 9.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? =
  10. 10.5/8 − 1/4 =
  11. 11.1/2 − 2/5 =
  12. 12.1/4 − 1/5 =
  13. 13.Meera has a ribbon 2/5 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  14. 14.7/8 − 1/6 =
  15. 15.Riya has a ribbon 2/3 m long and cuts off 5/9 m. How long is the ribbon now (in m)? =
  16. 16.3/4 − 2/5 =
  17. 17.3/4 − 3/8 =
  18. 18.3/4 − 1/7 =
  19. 19.A bottle has 5/6 litre of juice. Kabir drinks 1/8 litre. How much juice is left (in litres)? =
  20. 20.7/10 − 1/5 =
  21. 21.Diya has a ribbon 6/7 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  22. 22.7/8 − 3/4 =
  23. 23.A tank is 3/10 full of water. Then water filling 1/4 of the tank is used. What fraction of the tank is full now? =
  24. 24.7/8 − 5/6 =
  25. 25.A tank is 7/8 full of water. Then water filling 5/6 of the tank is used. What fraction of the tank is full now? =
  26. 26.5/6 − 1/5 =
  27. 27.1/3 − 1/5 =
  28. 28.A bottle has 1/5 litre of juice. Tara drinks 1/6 litre. How much juice is left (in litres)? =
  29. 29.1/4 − 1/8 =
  30. 30.Vihaan has a ribbon 2/3 m long and cuts off 3/10 m. How long is the ribbon now (in m)? =
  31. 31.9/10 − 2/5 =
  32. 32.A tank is 1/4 full of water. Then water filling 1/7 of the tank is used. What fraction of the tank is full now? =
  33. 33.1/2 − 1/4 =
  34. 34.Diya has a ribbon 2/7 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  35. 35.1/2 − 1/3 =
  36. 36.Kabir has a ribbon 2/3 m long and cuts off 3/5 m. How long is the ribbon now (in m)? =
  37. 37.2/3 − 3/7 =
  38. 38.A bottle has 5/6 litre of juice. Rohan drinks 3/8 litre. How much juice is left (in litres)? =
  39. 39.A tank is 1/3 full of water. Then water filling 1/8 of the tank is used. What fraction of the tank is full now? =
  40. 40.5/6 − 3/10 =

Answer key

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

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