Question

da / nu 3/9 = 4/9-4/2-1/9

Answer 1

$\frac{4}{9}-\frac{4}{2}-\frac{1}{9}$ =
= $\frac{8-26-2}{18}$ =
= $\frac{-20}{18}$ =
= $\frac{-10}{9}$

Clar, (-10)/9 ≠ 3/9, deci raspunsul este NU.

Answer 2

4/9-4/2-1/9=
se amplifica 4/9 cu 2; 4/2 cu 9; 1/9cu 2
8/18-36/18-2/18=-28/18-2/18=-30/18
se simplifica prin 3
-10/6 se simplifica pri 2
-5/3 raspuns nu