3/4 ounces as a decimal is 0.75, so we can subtract 0.75 from 3, and add 0.75 to 28.5 since the witch is pouring that much from the second bowl into the first bowl.
28.5 + 0.75 = 29.25
3 - 0.75 = 2.25
To figure out how many times bigger the first bowl is to the the second bowl, we can divide the first bowl by the second bowl. This will tell us how many times the second bowl will go into the first bowl.
[tex] \frac{29.25}{2.25}=13 [/tex]
So the first bowl has 13 times more potion than the second bowl.
