0,(3)=3/9=1/3 ;   0,1(6)=(16-1) / 90 =15/90=1/6  si  0,(4)=4/9 ; [latex]m_p=frac{frac{1}{3}cdot3+frac{1}{6}cdot15+frac{4}{9}cdot9}{3+15+9}=frac{1+2,5+1}{27}=frac{4,5}{27};=0,1(6)[/latex]