Answer:
The complete question is
Rosa puts 2/3 cup of vegetable mixture in 1 tortilla. She has 8 cups of vegetable mixture. Rosa says that to find how many tortillas she can fill, she first finds find how many 1/3 cups are in 8 cups. What else must Rosa do to find how many tortillas she can fill?
The most common process is to divide 2/3 by 8

Which means there 12 cups of 2/3 in 8 cups of vegetables.
Therefore, to find how many tortillas she can fill, additionally to her process, she can divide the result of her division by 2, as follows

Becuase, she needs 2/3 cups, and she intially divided by 1/3