2) 10·1\frac{4}{51};

2) 10$$\cdot$$1$$\frac{4}{51}$$ = 10$$\cdot$$\frac{1 \cdot 51 + 4}{51}$$ = 10$$\cdot$$\frac{51 + 4}{51}$$ = 10$$\cdot$$\frac{55}{51}$$ = $$\frac{10 \cdot 55}{51}$$ = $$\frac{550}{51}$$ = 10$$\frac{40}{51}$$

Ответ: 10$$\frac{40}{51}$$