Answer:
7/8 liters
Explanation:
Total Soda at the beggining = 3 liters
Amount drank in the Lunch = 1/8th of 3 liters
=> 3 * 1/8
=> 3/8
Amount left = 3 - 3/8 =2 5/8
Amount drank in Dinner = 2/3rd of 2 5/8
=> 1 6/8
=> Left = 2 5/8 - 1 6/8
=> 7/8 liters
Hope it helps :)