11. 12. 6 3 12 7 Х 12 Il 1 Х 8 14. 13 . 3 = 231 Х +10 =

12. Given the expression :
[tex]3\frac{6}{12}\times\frac{7}{12}=?[/tex]Convert the mixed number to fraction :
[tex]3\frac{6}{12}=3\frac{6}{6\cdot2}=3\frac{1}{2}=\frac{2\cdot3+1}{2}=\frac{7}{2}[/tex]Then find the result of the multiplication:
[tex]3\frac{6}{12}\times\frac{7}{12}=\frac{7}{2}\cdot\frac{7}{12}=\frac{49}{24}[/tex]Convert the result from fraction to a mixed number:
[tex]\frac{49}{24}=\frac{2\cdot24+1}{24}=2\frac{1}{24}[/tex]So, the answer is :
[tex]2\frac{1}{24}[/tex]