Плиз помогите 20 балоов

Решите задачу:

$2\frac{1}{3} : \frac{5,6+16\frac{13}{100}-0,03}{\frac{1}{12}+30,75+\frac{1}{6}} = \frac{7}{3}:\frac{\frac{560}{100} + \frac{1613}{100} - \frac{3}{100} }{ \frac{1}{12}+30 \frac{3}{4}+\frac{1}{6} }= \frac{7}{3}: \frac{ \frac{2170}{100}}{ \frac{1}{12}+\frac{123}{4}+ \frac{1}{6} } =\\\\= \frac{7}{3} : \frac{2170}{100\cdot \frac{372}{12} } = \frac{7}{3}: \frac{2170\cdot 12}{100\cdot 372} = \frac{7}{3}\cdot \frac{(4\cdot 25)\cdot (4\cdot 3\cdot 31)}{(7\cdot 10\cdot 31)(4\cdot 3)} = \frac{4\cdot 25}{3\cdot 10}=$

$= \frac{20}{6}=3\frac{1}{3}$