Question

(2 2/7+1 1/7)*1 1/6=
по действиям не десятичной

Answer 1

$(2 \frac{2}{7} + 1 \frac{1}{7} ) \times 1 \frac{1}{6 } =4 \\ 1)2 \frac{2}{7} + 1 \frac{1}{7} = 3 \frac{3}{7 } \\ 2)3 \frac{3}{7} \times 1 \frac{1}{6} = \frac{24}{7} \times \frac{7}{6} = \frac{24 \times 7}{7 \times 6} = 4$