Answer :

[tex]1 \frac{1}{6} - \frac{7}{12} \\ \\ 1 \frac{1}{6}= \frac{1x6+1}{6}= \frac{7}{6} \\ \\ \frac{7x2}{6x2}= \frac{14}{12} \\ \\ \frac{7x1}{12x1}= \frac{7}{12} \\ \\ \frac{14}{12} - \frac{7}{12}= \frac{7}{12} \\ \\ Solution: \frac{7}{12} [/tex]