-45в:(-15в)= -100сd:(20cd)= 18dy:(6dy)= 16abc:(8a)= 24pqr:(-4pq)= -42cdm:(12c)= -99xyzx:(-9x)=
1) 3 2) -5 3) 2bc 3)-6r 4)-7/2 dm=-3целых 1/2dm 5) 11xyz