Question

Помагите ришить 2 уровнения: 1)(3 5/6+а)-2 1/6=5        2)8 6/13-(б+9/13)=4 2 /13                                                             

Answer 1

$3 frac{5}{6}+a-2 frac{1}{6} =5$
$frac{23}{6}- frac{13}{6} +a=5$
$a=5- frac{10}{6}$
$a=3 frac{1}{3}$

$8 frac{6}{13}-b- frac{9}{13}=4 frac{2}{13}$
$frac{110}{13}-b- frac{9}{13}= frac{54}{13}$
$-b= frac{54}{13}- frac{101}{13}$
$b=3 frac{8}{13}$