29/4 : 5 4/5 - 3/4 * (3 - 1 19/30)

1. Convert mixed numbers to improper fractions: 29/4 : 29/5 - 3/4 * (3 - 49/30).
2. Perform division and subtraction within parentheses: 29/4 * 5/29 - 3/4 * (90/30 - 49/30) = 5/4 - 3/4 * 41/30.
3. Perform multiplication: 5/4 - 123/120 = 5/4 - 41/40.
4. Perform subtraction: 50/40 - 41/40 = 9/40.