Ok so what this means is below:
[tex] \frac{2}{3}* ( \frac{3}{4}+ \frac{1}{3} * \frac{3}{8} )[/tex]
Now we need to follow the rules of PEMDAS:
So inside the parentheses we need to do the multiplication first 1/3*3/8=1/8
Now we need to add 3/4 to this 1/8+3/4=7/8
Now do 2/3 of the value of the parenthesis 7/8
This is 14/24 = 7/12
Therefore there are 7 twelfths