Question

- 1 5/12 m - 5/7 n - 7/12 m - 2/7 n упростите выражение

Answer 1

$-1 frac{5}{12} m- frac{5}{7} n- frac{7}{12}m- frac{2}{7} n=( -1 frac{5}{12} m- frac{7}{12}m)- ( frac{5}{7}n+ frac{2}{7} n)=-2m-n$