4). (5 1/16 - 1 1/8) * (5/6 + 3/14)

1. Convert mixed numbers to improper fractions: (81/16 - 9/8) * (5/6 + 3/14).

2. Calculate the first parenthesis: (81/16 - 18/16) = 63/16.

3. Calculate the second parenthesis: (35/42 + 9/42) = 44/42 = 22/21.

4. Multiply the results: 63/16 * 22/21 = (3 * 11) / (8 * 1) = 33/8.

Final Answer: 33/8