Answer:

21 4/9

Step-by-step explanation:

120-98 4/9=21 4/9

Answer:

20 liters

Step-by-step explanation:

x = amount of water in liters when full

45x  - 8 =  23x

45x  -  23x  = 8

x = 60 liters

liters of water to be added to make it full = x -  23 x = 60 -  23 (60) = 20 liters