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Adding Fractions with Different Denominators Worksheet

Fractions lesson 15: Adding fractions: different denominators · Set 3 · 40 questions
TalentJR

The method (LCM first): Find the LCM of the two bottom numbers. Change each fraction to that bottom number (multiply its top and bottom by the same number). Add the tops, keep the bottom, and simplify.

NameDateTime takenScore ___ / 40
  1. 1.8/9 + 1/6 =
  2. 2.4/7 + 1/2 =
  3. 3.1/5 + 9/10 =
  4. 4.3/7 + 1/4 =
  5. 5.A jug has 2/9 litre of milk. Anaya pours in 1/2 litre more. How much milk is in the jug now (in litres)? =
  6. 6.Kabir walks 3/8 km to the park and then 1/6 km to the shop. How far does Kabir walk in all (in km)? =
  7. 7.Rohan walks 1/10 km to the park and then 1/2 km to the shop. How far does Rohan walk in all (in km)? =
  8. 8.2/9 + 1/3 =
  9. 9.1/4 + 2/7 =
  10. 10.Riya walks 9/10 km to the park and then 1/5 km to the shop. How far does Riya walk in all (in km)? =
  11. 11.A recipe needs 5/8 kg of flour and 2/3 kg of sugar. How much is that in all (in kg)? =
  12. 12.Anaya walks 1/2 km to the park and then 1/8 km to the shop. How far does Anaya walk in all (in km)? =
  13. 13.1/4 + 3/5 =
  14. 14.3/4 + 7/8 =
  15. 15.5/9 + 5/6 =
  16. 16.A recipe needs 5/8 kg of flour and 1/4 kg of sugar. How much is that in all (in kg)? =
  17. 17.Anaya walks 3/4 km to the park and then 4/5 km to the shop. How far does Anaya walk in all (in km)? =
  18. 18.A recipe needs 2/9 kg of flour and 2/3 kg of sugar. How much is that in all (in kg)? =
  19. 19.1/7 + 1/3 =
  20. 20.5/6 + 5/8 =
  21. 21.7/10 + 3/5 =
  22. 22.7/9 + 2/3 =
  23. 23.2/9 + 5/6 =
  24. 24.A recipe needs 2/5 kg of flour and 3/4 kg of sugar. How much is that in all (in kg)? =
  25. 25.1/8 + 1/6 =
  26. 26.6/7 + 1/3 =
  27. 27.3/5 + 5/6 =
  28. 28.8/9 + 5/6 =
  29. 29.1/6 + 2/3 =
  30. 30.Meera walks 6/7 km to the park and then 1/2 km to the shop. How far does Meera walk in all (in km)? =
  31. 31.A jug has 3/4 litre of milk. Sara pours in 2/7 litre more. How much milk is in the jug now (in litres)? =
  32. 32.Arjun walks 7/8 km to the park and then 5/6 km to the shop. How far does Arjun walk in all (in km)? =
  33. 33.4/7 + 1/3 =
  34. 34.A recipe needs 3/8 kg of flour and 1/4 kg of sugar. How much is that in all (in kg)? =
  35. 35.5/7 + 1/2 =
  36. 36.A jug has 3/4 litre of milk. Aarav pours in 7/10 litre more. How much milk is in the jug now (in litres)? =
  37. 37.Riya walks 6/7 km to the park and then 1/4 km to the shop. How far does Riya walk in all (in km)? =
  38. 38.Riya walks 9/10 km to the park and then 3/5 km to the shop. How far does Riya walk in all (in km)? =
  39. 39.A jug has 1/3 litre of milk. Anaya pours in 3/5 litre more. How much milk is in the jug now (in litres)? =
  40. 40.A jug has 5/9 litre of milk. Diya pours in 2/3 litre more. How much milk is in the jug now (in litres)? =

Answer key

  1. 19/18
  2. 15/14
  3. 11/10
  4. 19/28
  5. 13/18
  6. 13/24
  7. 3/5
  8. 5/9
  9. 15/28
  10. 11/10
  11. 31/24
  12. 5/8
  13. 17/20
  14. 13/8
  15. 25/18
  16. 7/8
  17. 31/20
  18. 8/9
  19. 10/21
  20. 35/24
  21. 13/10
  22. 13/9
  23. 19/18
  24. 23/20
  25. 7/24
  26. 25/21
  27. 43/30
  28. 31/18
  29. 5/6
  30. 19/14
  31. 29/28
  32. 41/24
  33. 19/21
  34. 5/8
  35. 17/14
  36. 29/20
  37. 31/28
  38. 3/2
  39. 14/15
  40. 11/9

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