)(7--

д) $$(7 - \frac{3}{4}) \cdot \frac{1}{3} = 7 \cdot \frac{1}{3} - \frac{3}{4} \cdot \frac{1}{3} = \frac{7}{3} - \frac{1}{4} = \frac{28 - 3}{12} = \frac{25}{12} = 2\frac{1}{12}$$

Ответ: $$2\frac{1}{12}$$