[tex]( \frac{11}{24} + \frac{11}{36} ) \div \frac{11}{6} [/tex]
[tex] = ( \frac{33}{72} + \frac{22}{72} ) \times \frac{6}{11} [/tex]
[tex] = \frac{33 + 22}{72} \times \frac{6}{11} [/tex]
[tex] = \frac{55}{72} \times \frac{6}{11} [/tex]
[tex] = \frac{5}{12} \times 1[/tex]
[tex] = \frac{5}{12} [/tex]