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Решите задачу:

$\frac{1}{9} + \frac{1}{27} = \frac{3}{27} + \frac{1}{27} = \frac{4}{27}; \frac{13}{11} : \frac{2}{26} = \frac{13}{11} * \frac{26}{2}= \frac{338}{22}=15 \frac{8}{22}=15 \frac{4}{11}$ $\frac{1}{9} + \frac{1}{27} = \frac{3}{27} + \frac{1}{27} = \frac{4}{27}; \frac{13}{11} : \frac{2}{26} = \frac{13}{11} * \frac{26}{2}= \frac{338}{22}=15 \frac{8}{22}=15 \frac{4}{11}$ $\frac{1}{9} + \frac{1}{27} = \frac{3}{27} + \frac{1}{27} = \frac{4}{27}; \frac{13}{11} : \frac{2}{26} = \frac{13}{11} * \frac{26}{2}= \frac{338}{22}=15 \frac{8}{22}=15 \frac{4}{11}$