109. Найдите значение выражения: а) 9,18 : 4,5 + 3,1 · 1,6; б) (8,16 − 7,48) : 0,017; в) (5/8 − 3/5) · 3,6 + 1,01; г) 3 · 0,125 − (4/9 − 3/7) · 7/8.

а) \(9.18 : 4.5 + 3.1 \cdot 1.6\)

\(9.18 : 4.5 = 2.04\), \(3.1 \cdot 1.6 = 4.96\).

\(2.04 + 4.96 = 7\).

б) \((8.16 - 7.48) : 0.017\)

\(8.16 - 7.48 = 0.68\).

\(0.68 : 0.017 = 40\).

в) \(\left(\frac{5}{8} - \frac{3}{5}\right) \cdot 3.6 + 1.01\)

\(\frac{5}{8} - \frac{3}{5} = \frac{25}{40} - \frac{24}{40} = \frac{1}{40}\).

\(\frac{1}{40} \cdot 3.6 = 0.09\).

\(0.09 + 1.01 = 1.1\).

г) \(3 \cdot 0.125 - \left(\frac{4}{9} - \frac{3}{7}\right) \cdot \frac{7}{8}\)

\(3 \cdot 0.125 = 0.375 = \frac{3}{8}\).

\(\frac{4}{9} - \frac{3}{7} = \frac{28}{63} - \frac{27}{63} = \frac{1}{63}\).

\(\frac{1}{63} \cdot \frac{7}{8} = \frac{1}{72}\).

\(\frac{3}{8} - \frac{1}{72} = \frac{27}{72} - \frac{1}{72} = \frac{26}{72} = \frac{13}{36}\).

Ответ: а) 7; б) 40; в) 1,1; г) \(\frac{13}{36}\).