e) √2 14/121 ⋅ 1 7/9 ⋅ 1/9

e) $$\sqrt{2\frac{14}{121} \cdot 1\frac{7}{9} \cdot \frac{1}{9}} = \sqrt{\frac{256}{121} \cdot \frac{16}{9} \cdot \frac{1}{9}} = \sqrt{\frac{256}{121}} \cdot \sqrt{\frac{16}{9}} \cdot \sqrt{\frac{1}{9}} = \frac{16}{11} \cdot \frac{4}{3} \cdot \frac{1}{3} = \frac{64}{99}$$

Ответ: 64/99