5/49 * 4 1/12 =

$$ \frac{5}{49} \cdot 4\frac{1}{12} = \frac{5}{49} \cdot \frac{49}{12} = \frac{5}{1} \cdot \frac{1}{12} = \frac{5}{12} $$

Ответ: $$\frac{5}{12}$$