Question

1 5/6х-2/3х+0,25х. при. х=6

Answer 1

$1frac{5}{6}x-frac{2}{3}x+0,25x$ = $1frac{5}{6}x-frac{2}{3}x+frac{1}{4}x$ = $frac{11}{6}x-frac{2}{3}x+frac{1}{4}x$ = $x(frac{11}{6}-frac{2}{3}+frac{1}{4})$ = $x(frac{22}{12}-frac{8}{12}+frac{3}{12})$ = $x*frac{17}{12}$, если x = 6; 
$6*frac{17}{12}$ = $frac{17}{2}$ = $8,5$