\[\boxed{\mathbf{2.432}}\]
Пояснение.
Решение.
\[\textbf{а)}\frac{1}{15}\ от\ 15\]
\[15 \cdot \frac{1}{15} = 1.\]
\[\textbf{б)}\ \ 0,3 = \frac{3}{10}\ от\ 3\frac{1}{3} = \frac{10}{3}\]
\[\frac{10}{3} \cdot \frac{3}{10} = 1.\]
\[\textbf{в)}\ \frac{2}{3}\ от\ 1,5 = \frac{3}{2}\]
\[\frac{3}{2} \cdot \frac{2}{3} = 1.\]
\[\textbf{г)}\ 0,25 = \frac{25}{100} = \frac{1}{4}\ от\ 4\]
\[4 \cdot \frac{1}{4} = 1.\]