Respuesta :

First, you take 1/4 out of 20. 1/4 of 20 is 5.
Now, you have 15 oz.

If you pour out 3 for yourself, you then have 12/20 of a bottle left.

This can be simplified to 6/10, then to 3/5.

Hope this helps! :)
The answer is 3/5
:) :p