Пажалуйста 4 не 3 а 4 пришлите с фоткой а то я казашка не пойму

Решите задачу:

$(3 \frac{1}{4} +1 \frac{1}{6} :1 \frac{5}{9}) :2 \frac{2}{7} +5 \frac{1}{9} :7 \frac{2}{3} =(3 \frac{1}{4} +\frac{7}{6} :\frac{14}{9}) :\frac{16}{7} +\frac{46}{9} :\frac{23}{3} = \\ \\ =(3 \frac{1}{4} +\frac{7}{6} *\frac{9}{14}) *\frac{7}{16} +\frac{46}{9} *\frac{3}{23} =(3 \frac{1}{4} +\frac{3}{4}) *\frac{7}{16} +\frac{2}{3} = \\ \\ =3 \frac{4}{4} * \frac{7}{16} + \frac{2}{3} =4* \frac{7}{16} + \frac{2}{3} = \frac{7}{4} + \frac{2}{3} = \frac{21}{12} + \frac{8}{12} = \frac{29}{12}=2 \frac{5}{12}$