Ответ:

\(5\frac45=\frac{29}{5}\), поэтому \(\frac{29}{4}:\frac{29}{5}=\frac54\).

\(3-1\frac{19}{30}=\frac{90}{30}-\frac{49}{30}=\frac{41}{30}\).

\(\frac54-\frac34\cdot\frac{41}{30}=\frac54-\frac{41}{40}=\frac{50}{40}-\frac{41}{40}=\frac{9}{40}\).

Ответ: \(\frac{9}{40}\).