Найдите значения выражений: (1 + 2(целых)2/3) : (4/5 - 4/15) , (2/3 + 1/12 + 7/24) : 50

(1 + 2 [latex] frac{2}{3} [/latex] ) : ( [latex] frac{4}{5} [/latex] - [latex] frac{4}{15} [/latex]) = 3 [latex] frac{2}{3} [/latex] : ( [latex] frac{12}{15} [/latex] - [latex] frac{4}{15} [/latex] ) = 3 [latex] frac{2}{3} [/latex] : [latex] frac{8}{15} [/latex] = [latex] frac{11}{3} [/latex] : [latex] frac{8}{15} [/latex] = [latex] frac{11}{3} [/latex] * [latex] frac{15}{8} [/latex] = [latex] frac{55}{8} [/latex] = 6 [latex] frac{7}{8} [/latex]( [latex] frac{2}{3} [/latex] + [latex] frac{1}{12} [/latex] + [latex] frac{7}{24} [/latex] ) : 50 = [latex] frac{16}{24} [/latex] + [latex] frac{2}{24} [/latex] + [latex] frac{7}{24} [/latex] ) : 50 = [latex] frac{25}{24} [/latex] : 50 = [latex] frac{25}{24} [/latex] * [latex] frac{1}{50} [/latex] = [latex] frac{1}{48} [/latex]