Question

!!!помогите пожалуйста!!!​

Answer 1

$1 \frac{1}{18} \times 3 \frac{1}{6} + 2 \frac{5}{6} \times 1 \frac{1}{18} = \\ = 1 \frac{1}{18} \times (3 \frac{1}{6} + 2 \frac{5}{6} ) \ = \\ = \frac{19}{18} \times (3 + 2 + \frac{1}{6} + \frac{5}{6} ) = \\ = \frac{19}{18} \times 6 = \frac{19}{3} = 6 \frac{1}{3}$