Question

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

Answer 1

(12 + 24 + 36 + ... + 444) : (6 + 12 + 18 + ...+ 222) =
12(1 + 2 + 3 +.....+ 37) : 6(1 + 2 + 3 +...... + 37) = 
12 : 6 =
2

Answer 2

=12(1+2+3+...+111):[6(1+2+3+...+111)]=

$=\frac{12(1+2+3+...+111)}{6(1+2+3+...+111)}=$

$=\frac{12}{6}=$

$\boxed{=2}$