Б) ( 5,6 - 3 1/3 ) : ( 1,5 + 1 1/3 )

5[latex] \frac{2}{3} -3 \frac{1}{3} =2 \frac{1}{3} [/latex] [latex]1 \frac{1}{2} +1 \frac{1}{3} =2 \frac{3+2}{6} =2 \frac{5}{6} [/latex] [latex]2 \frac{1}{3} :2 \frac{5}{6} = \frac{2*3+1}{3} : \frac{2*6+5}{6} = \frac{7}{3} : \frac{17}{6} = \frac{7*6}{3*17} = \frac{14}{17} [/latex]