Calculeaza: (12+24+36+...+444):(6+12+18+...+222) Fara termeni complicati. Urgent !

Răspuns :

(12+24+36+...+444):(6+12+18+...+222) =

= 12 ×(1 + 2 + 3 +...+ 37):6×(1 + 2 + 3 +...+37) =

= 12 : 6 =

= 2