[tex]\left(16\cdot 12^{10}-4\cdot 12^{10}\right):12^{11} =\\ \\ =\left[12^{10}\cdot \left(16-4\right)\right]:12^{11}\\ \\ =\left(12^{10}\cdot 12\right):12^{11}\\ \\ =12^{11}:12^{11}\\ \\ = \bf{1}[/tex]