[tex] 3\frac{1}{3} * (3\frac{1}{5}+10,2+3\frac{1}{4} )= \frac{10}{3} * (3\frac{1}{5}+10 \frac{2}{10}+3\frac{1}{4} )= \frac{10}{3} * (3\frac{4}{20}+10 \frac{4}{20}+3\frac{5}{20} )=\\\\=\frac{10}{3}* 16 \frac{13}{20}=\frac{\not{10}^1}{\not{3}^1}*\frac{\not{333}^{111}}{\not{20}^2}=\frac{111}{2}=55,5[/tex]
[tex]33\frac{1}{3}\% =\frac{ 100}{3}*\frac{1}{100}=\frac{1}{3}\\\\\frac{1}{3} *55,5=18,5 [/tex]
