70:(5/8+5/6)+(3 1/9-1/3)

70 ÷ ([latex] \frac{5}{8} [/latex] + [latex] \frac{5}{6} [/latex]) + ([latex]3 \frac{1}{9} - \frac{1}{3} [/latex]) = 70 ÷ ([latex] \frac{15}{24}[/latex] + [latex] \frac{20}{24} [/latex]) + ([latex]\frac{28}{9} - \frac{1}{3} [/latex]) = 70 ÷ [latex] \frac{35}{24} [/latex] + ([latex]\frac{28}{9} - \frac{3}{9} [/latex]) = 70 × [latex] \frac{24}{35} [/latex] + [latex] \frac{25}{9} [/latex] = 48 + [latex] \frac{25}{9} [/latex] = [latex] \frac{432}{9} [/latex] + [latex] \frac{25}{9} [/latex] = [latex] \frac{457}{9} [/latex] = [latex]50 \frac{7}{9} [/latex]