[(1/3) + (1/3)]/[(1/3) + (1/3)]=1[(1/3) / (1/3) - (1/3)]/(1/3) = 2[(1/3) + (1/3)+(1/3) ]/(1/3)=3[(1/3) + (1/3)]/[(1/3)*(1/3)]=6(1/3)/[(1/3)*(1/3)*(1/3)]=9