(286 4/5+3/15):7/10=...

[latex](286 frac{4}{5} + frac{3}{15} ) : frac{7}{10} = 410[/latex]1) [latex]286 frac{4}{5} [/latex] + [latex] frac{3}{15} [/latex] = [latex]286 frac{12}{15} [/latex] + [latex] frac{3}{15} [/latex] = 286[latex] frac{15}{15} [/latex] = 2872) 287 : [latex] frac{7}{10} [/latex] = 287 * [latex] frac{10}{7} [/latex] = [latex] frac{287*10}{7} [/latex] = 410