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Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 34 · 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. 1.7/8 − 1/6 =
  2. 2.Ishaan has a ribbon 7/10 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  3. 3.4/5 − 2/3 =
  4. 4.5/7 − 1/2 =
  5. 5.Diya has a ribbon 3/5 m long and cuts off 1/6 m. How long is the ribbon now (in m)? =
  6. 6.Vihaan has a ribbon 5/7 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  7. 7.1/2 − 3/10 =
  8. 8.A tank is 4/7 full of water. Then water filling 1/2 of the tank is used. What fraction of the tank is full now? =
  9. 9.3/4 − 2/7 =
  10. 10.Kabir has a ribbon 4/7 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  11. 11.7/10 − 2/5 =
  12. 12.A bottle has 5/8 litre of juice. Ishaan drinks 1/4 litre. How much juice is left (in litres)? =
  13. 13.A tank is 5/9 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  14. 14.7/8 − 1/4 =
  15. 15.A tank is 5/6 full of water. Then water filling 7/9 of the tank is used. What fraction of the tank is full now? =
  16. 16.A bottle has 2/3 litre of juice. Diya drinks 1/2 litre. How much juice is left (in litres)? =
  17. 17.7/9 − 1/6 =
  18. 18.1/2 − 1/10 =
  19. 19.Tara has a ribbon 4/5 m long and cuts off 7/10 m. How long is the ribbon now (in m)? =
  20. 20.5/6 − 3/5 =
  21. 21.5/8 − 1/4 =
  22. 22.9/10 − 1/3 =
  23. 23.5/6 − 2/3 =
  24. 24.A tank is 3/7 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  25. 25.A bottle has 3/4 litre of juice. Anaya drinks 2/7 litre. How much juice is left (in litres)? =
  26. 26.7/10 − 2/3 =
  27. 27.4/7 − 1/2 =
  28. 28.7/10 − 1/3 =
  29. 29.7/9 − 2/3 =
  30. 30.Diya has a ribbon 1/2 m long and cuts off 2/7 m. How long is the ribbon now (in m)? =
  31. 31.1/3 − 1/8 =
  32. 32.A bottle has 1/2 litre of juice. Rohan drinks 1/3 litre. How much juice is left (in litres)? =
  33. 33.A bottle has 7/10 litre of juice. Ishaan drinks 1/3 litre. How much juice is left (in litres)? =
  34. 34.9/10 − 1/5 =
  35. 35.Ishaan has a ribbon 7/9 m long and cuts off 1/2 m. How long is the ribbon now (in m)? =
  36. 36.1/3 − 2/9 =
  37. 37.A bottle has 5/9 litre of juice. Ishaan drinks 1/2 litre. How much juice is left (in litres)? =
  38. 38.A tank is 4/7 full of water. Then water filling 1/3 of the tank is used. What fraction of the tank is full now? =
  39. 39.5/6 − 7/9 =
  40. 40.3/4 − 3/5 =

Answer key

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

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