For this, we need to convert the mixed number into a fraction and multiply by 2/3 because thats how much is going to be left if 1/3 is used.
[tex]2 \frac{5}{8} = \frac{21}{8} [/tex]
Now multiply
[tex] \frac{21}{8} \times \frac{2}{3} = \frac{42}{24} = \frac{21}{12} [/tex]
Now if you want that into a mixed number we get
[tex] \frac{21}{12} = \frac{12}{12} + \frac{9}{12} = 1 \frac{9}{12} [/tex]
1 and 9/12 ounces will be left after 1/3 is used.
