Question

(7-1 5/12 ) : 6,7 + ( 5,75-3 1/6 ) : 15,5

Answer 1

$( 7-1frac{5}{12}) : 6,7 + ( 5,75-3 frac{1}{6} ) : 15,5= frac{226}{201}$
 $1) 7- 1 frac{5}{12}=6 frac{5}{12}$
$2) 6 frac{5}{12}: frac{67}{10}= frac{77}{12} * frac{10}{67}= frac{770}{804} =frac{385}{402}$
$3) frac{575}{100} - frac{19}{6} = frac{3450-1900}{600} =frac{1550}{600}$
$5) frac{1}{6} + frac{385}{402}= frac{385+67}{402} = frac{226}{201}$
$4) frac{1550}{600}: frac{155}{10} = frac{1550}{600}* frac{10}{155}= frac{1}{6}$