[tex][2,5 \ +2,(6)-7^{12}]:11^4+4^4=\\=(\frac{7}{2}+\frac{8}{3}-7^{12})\cdot \frac{1}{11^4} +256= \\ =(\frac{31}{6}-7^{12})\cdot \frac{1}{11^4}+256=\\=\frac{31-6\cdot 7^{12}}{6}\cdot \frac{1}{11^{4}}+256=\\=\frac{31-6\cdot 7^{12}}{6 \cdot 14 \ 641}+256=\boxed{\frac{22 \ 488 \ 607-6\cdot 7^{12}}{87 \ 846}}[/tex]
