Answer:
[tex]\frac{1}{12^{13}}[/tex] or [tex]12^{-13}[/tex]
Step-by-step explanation:
[tex]\frac{12^{-6} }{12^7} = \frac{\frac{1}{12^6} }{12^7} = \frac{1}{12^{13}} =12^{-13}[/tex]
