Question 949886
So you have 6 1/2 bottles. First convert everything to 1/2: 6 bottles= 12 half bottles, plus one half you have 13 half bottles. Now:

13/26 = 0.5 Each glass takes 0.5 of 1/2 bottle. In fractions, each glass takes 1/2 of 1/2 bottle. And what is 1/2 of 1/2?
1/2*1/2 = 1/4
Each glass takes 1/4 bottle