\(\boxed{\mathbf{2.}\mathbf{316}\mathbf{.\ ОК\ ГДЗ - домашка\ на\ }5}\)
Пояснение.
Решение.
\[\textbf{а)}\ \frac{2}{7}\ \ от\ 14:\]
\[14\ :7 \cdot 2 = 2 \cdot 2 = 4.\]
\[\textbf{б)}\ \frac{5}{9}\ от\ 48:\]
\[48\ :9 \cdot 5 = \frac{48 \cdot 5}{9} = \frac{240}{9} =\]
\[= 26\frac{6}{9} = 26\frac{2}{3}.\]
\[\textbf{в)}\ \frac{9}{4}\ от\ \frac{8}{27}:\]
\[\frac{8}{27} \cdot \frac{9}{4} = \frac{8 \cdot 9}{27 \cdot 4} = \frac{2}{3}.\]
\[\textbf{г)}\ \frac{4}{9}\ от\ \frac{3}{16}:\]
\[\frac{3}{16} \cdot \frac{4}{9} = \frac{3 \cdot 4}{16 \cdot 9} = \frac{1}{4 \cdot 3} = \frac{1}{12}.\]