1+ 5/31=36/31
7+ 3/4=31/4
31/4 : 1/3 = 93/4
y:(36/31)=31y/36
31y/36=93/4
y=93*36/(4*31)=27
ответ: 27
1+ 5/31=36/31
7+ 3/4=31/4
31/4 : 1/3 = 93/4
y:(36/31)=31y/36
31y/36=93/4
y=93*36/(4*31)=27
ответ: 27