Вычислите: 2,2(7)+4 1/6*(0,625-1,64:1,6).

\[= \frac{205}{90} + \frac{25 \cdot ( - 0,4)}{6} =\]

\[= \frac{205}{90} - \frac{10^{\backslash 15}}{6} = \frac{205 - 150}{90} =\]

\[= \frac{55}{90} = 0,6(1)\]