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МатематикаВопрос:
49. \(\frac{15}{16} : \frac{3}{8} \cdot \frac{2}{5}\)
Ответ:
\(\frac{15}{16} : \frac{3}{8} \cdot \frac{2}{5} = (\frac{15}{16} \cdot \frac{8}{3}) \cdot \frac{2}{5} = \frac{15 \cdot 8}{16 \cdot 3} \cdot \frac{2}{5} = \frac{5 \cdot 1}{2 \cdot 1} \cdot \frac{2}{5} = \frac{5}{2} \cdot \frac{2}{5} = 1\)
Ответ: 1
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