First, we need to find how many liters of horchata Ana has in her refrigerator:
7/10 of a liter is the same as (7/10) / (1/1) = 7/10 liters.
To find how many glasses of horchata she can pour, we divide the total amount of horchata by the amount in each glass:
(7/10) ÷ (1/8) = (7/10) x (8/1) = 56/10 = 5.6
Ana can pour 5.6 glasses of horchata. Since she cannot pour a fraction of a glass, she can pour a maximum of 5 glasses of horchata.