Question

1/6m-1целая1/4n+2/3m-1/2n при m=-0.2 и n=-1 целая 1/7

Answer 1

Ответ:

Пошаговое объяснение:

1/6m - 1. 1/4n + 2/3m - 1/2n =

1/6m - 1. 1/4n + 4/6m - 2/4n =

5/6m - 1. 3/4n

5/6 * (-0,2) - 1. 3/4 * (-1. 1/7) =

5/6 * (-2/10) - 7/4 * (-8/7) =

-10/60 + 56/28 = -1/6 + 2 =

-1/6 + 1. 6/6 = 1. 5/6

Answer 2

m = -0.2 = -$\frac{1}{5}$, n = -$\frac{8}{7}$

Покрокове пояснення:

1$\frac{1}{6}$m - 1$\frac{1}{4}$n+$\frac{2}{3}$m-$\frac{1}{2}$n = $\frac{7}{6}$m-$\frac{5}{4}$n+$\frac{2}{3}$m-$\frac{1}{2}$n =  $\frac{7}{6}$m-$\frac{5}{4}$n+$\frac{4}{6}$m-$\frac{2}{4}$n = $\frac{11}{6}$m-$\frac{7}{4}$n = $\frac{11}{6}$*(-$\frac{1}{5}$) +  $\frac{7}{4}$*$\frac{8}{7}$ = -$\frac{11}{30}$ + 2 = $\frac{60}{30}$ - $\frac{11}{30}$ = $\frac{49}{30}$ = 1$\frac{19}{30}$