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