[tex] { \frac{1}{2} }^{3} + 1 \frac{1}{2} \div \frac{3}{4} = \frac{1}{8} + \frac{3}{2} \times \frac{4}{3} = \frac{1}{8} + 2 = \frac{17}{8} [/tex]
[tex] \frac{5}{7} \times 1 \frac{3}{4} - { \frac{1}{2} }^{2} = \frac{15}{28} - \frac{1}{4} = \frac{2}{7} [/tex]
[tex] { \frac{1}{3} }^{2} \times \frac{11}{8} + \frac{11}{2} = \frac{1}{9} \times \frac{11}{8} + \frac{3}{2 } = \frac{11}{72} + \frac{3}{2} = \frac{119}{72} [/tex]