2 2/3 : (y+1/3)=1 1/2 : (y-1 1/8)

2 2/3 : (y+1/3)=1 1/2 : (y-1 1/8)2 2/3(y-1 1/8)=1 1/2 (y+1/3)8/3(y-9/8)=3/2 (y+1/3) умножим на 616(y-9/8)=9 (y+1/3)16у-16*9/8=9у+9*1/316у-18=9у+316у-9у=3+187у=21у=21/3=7