7 6/7 * 1 6/11 + 3 1/7 * 3 11/11;

1. Convert mixed numbers to improper fractions: 7 6/7 = 55/7, 1 6/11 = 17/11, 3 1/7 = 22/7, 3 11/11 = 44/11.
2. Perform multiplication: (55/7)*(17/11) = 5*17/7 = 85/7. (22/7)*(44/11) = 22*4/7 = 88/7.
3. Add the results: 85/7 + 88/7 = 173/7.