(3 5/18+2 1/6)*6-7 2/3 =25
3 5/18+ 2 1/6=59/18+13/6=59/18+39/18=98/18=49/9=5 4/9
5 4/9 * 6= 49/9 *6=294/9=32 6/9=32 2/3
32 2/3- 7 2/3=25