Question

-2/9(2,7m-1,5n)+5/6(2n-0,48m)​

Answer 1

$- \frac{2}{9} (2.7m - 1.5n) + \frac{5}{6} (2n - 0.48m)$

$2.7 = \frac{27}{10} , \: 1.5 = \frac{15}{10} = \frac{3}{2} , \: 0.48 = \frac{48}{100} = \frac{12}{25}$

$- \frac{2}{9} \times \frac{27}{10} \times m - \frac{2}{9} \times ( - \frac{3}{2} ) \times n + \frac{5}{6} \times 2 \times n - \frac{5}{6} \times \frac{12}{25} \times m = - \frac{2 \times 27}{9 \times 10} m + \frac{2 \times 3}{9 \times 2} \times n + \frac{5 \times 2}{6} \times n - \frac{5 \times 12}{6 \times 25} \times m = - \frac{3}{5} m + \frac{1}{3} n + \frac{5}{3} n - \frac{2}{5} m = ( - \frac{3}{5} m + \frac{2}{5} m) + ( \frac{1}{3} n + \frac{5}{3} n) = - \frac{1}{5} m + 2n$