Question

Объясните как решить​

Answer 1

$8 \frac{11}{13} + \frac{5}{13} = \frac{115}{13} + \frac{5}{13} = \frac{120}{13}$

$8 \frac{11}{13} = \frac{8 \times 13 + 11}{13} = \frac{115}{13}$

Answer 2

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