Найдите значение выражения:
1)

\frac{\frac{3, 5}{4, 8} : \frac{7}{8} + \frac{4, 4}{3, 9} * 3 \frac{1}{4}}{26 * 0, 8 - 20, 44 : 2, 8}

;
2)

\frac{\frac{2, 1}{5, 1} * 5 \frac{2}{3} - \frac{2, 6}{4, 5} : 3 \frac{7}{15}}{10, 26 : 3, 8 + 1, 4 * 12}

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Математика 6 класс Виленкин. Номер №1142

\frac{\frac{3, 5}{4, 8} : \frac{7}{8} + \frac{4, 4}{3, 9} * 3 \frac{1}{4}}{26 * 0, 8 - 20, 44 : 2, 8} = \frac{\frac{35}{48} * \frac{8}{7} + \frac{44}{39} * \frac{13}{4}}{20, 8 - 7, 3} = \frac{\frac{5}{6} * \frac{1}{1} + \frac{11}{3} * \frac{1}{1}}{20, 8 - 7, 3} = \frac{\frac{5}{6} + \frac{11}{3}}{13, 5} = \frac{\frac{5}{6} + \frac{22}{6}}{13, 5} = \frac{27}{6} : 13 \frac{1}{2} = \frac{27}{6} * \frac{2}{27} = \frac{1}{3} * \frac{1}{1} = \frac{1}{3}

\frac{\frac{2, 1}{5, 1} * 5 \frac{2}{3} - \frac{2, 6}{4, 5} : 3 \frac{7}{15}}{10, 26 : 3, 8 + 1, 4 * 12} = \frac{\frac{21}{51} * \frac{17}{3} - \frac{26}{45} : \frac{52}{15}}{2, 7 + 16, 8} = \frac{\frac{7}{3} * \frac{1}{1} - \frac{26}{45} * \frac{15}{52}}{19, 5} = \frac{\frac{7}{3} - \frac{1}{3} * \frac{1}{2}}{19, 5} = \frac{\frac{7}{3} - \frac{1}{6}}{19 \frac{1}{2}} = \frac{\frac{14}{6} - \frac{1}{6}}{\frac{39}{2}} = \frac{13}{6} * \frac{2}{39} = \frac{1}{3} * \frac{1}{3} = \frac{1}{9}

ГДЗ Математика 6 класс Виленкин, Жохов, Чесноков