Question

Va rog ajutati-ma :(

Answer 1

Răspuns:

Explicație pas cu pas:

$\frac{1}{81}$ : $\frac{4}{9}$ (*4) + $\frac{1}{6}$ (*6)

= 1/81 : 16/36 + 6/36

= $\frac{1}{81} \frac{36}{16} + \frac{6}{36}$

= 1/9 x 4/16 + 6/36

= 4/144 + 6/36 (x4)

=4+24 / 144

=28/ 144

=7/36