[tex]( \frac{7}{6} + \frac{1}{8} ) \div (1 \frac{7}{8} - \frac{5}{12} ) = \frac{28 + 3}{24} \div \frac{45 - 10}{24} = \frac{31}{24} \times \frac{24}{25} = \frac{31}{25} [/tex]
