1 7 6 10

1) $$\frac{1}{6} + \frac{7}{10} = \frac{1 \cdot 5}{6 \cdot 5} + \frac{7 \cdot 3}{10 \cdot 3} = \frac{5}{30} + \frac{21}{30} = \frac{5+21}{30} = \frac{26}{30} = \frac{13}{15}$$

Ответ: $$\frac{13}{15}$$