(1003*(1003+1002)-1002)/(1003+(1003+1002)*1002)=(1003*1003+1003*1002-1002)/(1003+1003*1002+1002*1002)=(1003*1003+1002*1002)/(1003*1003+1002*1002)=1
(1003*(1003+1002)-1002)/(1003+(1003+1002)*1002)=(1003*1003+1003*1002-1002)/(1003+1003*1002+1002*1002)=(1003*1003+1002*1002)/(1003*1003+1002*1002)=1