Реши примеры: Г) 17/19 : 5 + 2/19 * 1/5

Конечно, давай решим эти примеры вместе! г) $\frac{17}{19} : 5 + \frac{2}{19} \cdot \frac{1}{5} = \frac{17}{19} \cdot \frac{1}{5} + \frac{2}{19} \cdot \frac{1}{5} = \frac{17}{95} + \frac{2}{95} = \frac{19}{95} = \frac{1}{5}$ д) $79 \cdot 11 - 69 : \frac{1}{11} = 869 - 69 \cdot 11 = 869 - 759 = 110$ е) $87 : \frac{1}{15} + 13 \cdot 15 = 87 \cdot 15 + 195 = 1305 + 195 = 1500$ ё) $\frac{7}{8} \cdot 10 + \frac{1}{8} : 0{,}1 = \frac{70}{8} + \frac{1}{8} : \frac{1}{10} = \frac{35}{4} + \frac{1}{8} \cdot 10 = \frac{35}{4} + \frac{10}{8} = \frac{35}{4} + \frac{5}{4} = \frac{40}{4} = 10$ з) $\frac{5}{12} : 0{,}2 + \frac{7}{12} \cdot 5 = \frac{5}{12} : \frac{1}{5} + \frac{35}{12} = \frac{5}{12} \cdot 5 + \frac{35}{12} = \frac{25}{12} + \frac{35}{12} = \frac{60}{12} = 5$ и) $19 \cdot \frac{5}{17} + 81 : 3\frac{2}{5} = 19 \cdot \frac{5}{17} + 81 : \frac{17}{5} = \frac{95}{17} + 81 \cdot \frac{5}{17} = \frac{95}{17} + \frac{405}{17} = \frac{500}{17} = 29\frac{7}{17}$ й) $57 : \frac{9}{11} + 33 \cdot 1\frac{2}{9} = 57 \cdot \frac{11}{9} + 33 \cdot \frac{11}{9} = \frac{57 \cdot 11}{9} + \frac{33 \cdot 11}{9} = \frac{627}{9} + \frac{363}{9} = \frac{990}{9} = 110$ к) $\frac{7}{8} \cdot 9 + \frac{5}{8} : \frac{1}{9} - \frac{1}{2} \cdot 9 = \frac{63}{8} + \frac{5}{8} \cdot 9 - \frac{9}{2} = \frac{63}{8} + \frac{45}{8} - \frac{9}{2} = \frac{108}{8} - \frac{36}{8} = \frac{72}{8} = 9$ л) $\frac{7}{9} : 9 + \frac{5}{9} \cdot \frac{1}{3} - \frac{1}{9} = \frac{7}{9} \cdot \frac{1}{9} + \frac{5}{27} - \frac{1}{9} = \frac{7}{81} + \frac{5}{27} - \frac{1}{9} = \frac{7}{81} + \frac{15}{81} - \frac{9}{81} = \frac{13}{81}$