Question Number 126321 by Ndala last updated on 19/Dec/20
$${if}\:\:{a}+{b}\geqslant{c}>\mathrm{0} \\ $$$$\mathrm{P}{rove}\:{that} \\ $$$$\frac{{a}}{\mathrm{1}+{a}}+\frac{{b}}{\mathrm{1}+{b}}>\frac{{c}}{\mathrm{1}+{c}} \\ $$$$. \\ $$$$\mathrm{I}\:{need}\:{help}… \\ $$