×+(16/25-4/5)=-3 2/5:5/6

х+(16/25-4/5)=-3 2/5:5/6          -3 2/5:5/6=-17/5:5/6=-17/5*6/5=-102/25x+(16/25-20/25)=-102/25x-4/25=-102/25x=-102/25+4/25x=-98/25=-3 23/25