д) у: 1\frac{1}{2} = 2\frac{1}{3} \cdot \frac{1}{3};

д) Решим уравнение:

$$y : 1\frac{1}{2} = 2\frac{1}{3} \cdot \frac{1}{3};$$

$$y : \frac{3}{2} = \frac{7}{3} \cdot \frac{1}{3};$$

$$y : \frac{3}{2} = \frac{7}{9};$$

$$y = \frac{7}{9} \cdot \frac{3}{2};$$

$$y = \frac{7 \cdot 3}{9 \cdot 2};$$

$$y = \frac{7 \cdot \cancel{3}}{3 \cdot \cancel{3} \cdot 2};$$

$$y = \frac{7}{6};$$

$$y = 1\frac{1}{6}.$$

Ответ: $$y = 1\frac{1}{6}$$.