Question

вычислите пожалуйста

Answer 1

$\frac{1}{ \frac{1}{96} + \frac{1}{112} } = \frac{ \frac{1}{13} }{672} = \frac{672}{13} = 51 \frac{9}{13}$

Answer 2

$\frac{1}{\frac{\frac{1}{2}}{48}+\frac{\frac{1}{2}}{56}}=\frac{1}{\frac{1}{2}\cdot (\frac{1}{48}+\frac{1}{56})}=\frac{2}{\frac{7}{336}+\frac{6}{336}}=\frac{2}{\frac{13}{336}}=\frac{2\cdot 336}{13}=51\frac{9}{13}$