Question

solve this problem step by step than I will mark you as brainleist​

Answer 1

$(m+ n)^{-1}(m^{-1} + n^{-1}) = (mn)^{-1}$

$\frac{1}{m + n}$ × $(\frac{1}{m} +\frac{1}{n} )$ = $(mn)^{-1}$

$\frac{1}{m + n}$ × $(\frac{m +n}{mn} )$ = $(mn)^{-1}$

$\frac{1}{mn} = (mn)^{-1}$

$(mn)^{-1} = (mn)^{-1}$

please mark as brainliest