Ответ:

\(\frac79-\frac{47}{72}=\frac18\), поэтому \(\frac18:1.25+\frac7{40}=\frac1{10}+\frac7{40}=\frac{11}{40}\).

\(0.358-0.108=0.25\), а \(0.25\cdot1.6=0.4=\frac25\).

\(\frac{11}{40}:\frac25=\frac{11}{16}\).

\(\frac{11}{16}-\frac{19}{25}=\frac{275-304}{400}=-\frac{29}{400}\).

Ответ: \(-\frac{29}{400}\).