[tex] \frac{1}{6 } [/tex] chance to roll a 6
[tex] \frac{1}{2 } [/tex] chance to get a tails
[tex] \frac{1}{6 } [/tex] *[tex] \frac{1}{2 } [/tex] =[tex] \frac{1}{12 } [/tex]
therfore you have [tex] \frac{1}{12 } [/tex] chance of getting both a 6 and getting a tails