Question

ПОМОГИТЕ ПОЖАЛУЙСТА!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

$\frac{2}{n+1}+\frac{3}{k+1}=\frac{2k+2+3n+3}{(n+1)(k+1)}=\frac{2k+3n+5}{(n+1)(k+1)}$