Question

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

Answer 1

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