17) 12,35 : 0,6 · 7

\( 12,35 : 0,6 \cdot 7 = \frac{1235}{100} : \frac{6}{10} \cdot 7 = \frac{1235}{100} \cdot \frac{10}{6} \cdot 7 = \frac{1235}{10} \cdot \frac{1}{6} \cdot 7 = \frac{123,5}{6} \cdot 7 = \frac{864,5}{6} = 144,0833... \)

Ответ: \(\approx 144,08\)