Question

1/4 + 1/6 + 1/12 = ...​

Answer 1

1/4+1/6+1/12= (aducem la acelasi numitor comun, acesta fiind 12) => 3+2+1/2=6/12 (simplificam cu 6) = 1/2

Answer 2

Explicație pas cu pas:

${}^{3)} \frac{1}{4} + {}^{2)} \frac{1}{6} + \frac{1}{12} = \\ \\ = \frac{3}{12} + \frac{2}{12} + \frac{1}{12} = \\ \\ = \frac{3 + 2 + 1}{12} = \\ \\ = \frac{6}{12} {}^{(6} = \\ \\ = \boxed{ \frac{1}{2} }$