Explicație pas cu pas:
11.b)
[tex]\overline{2a} \: numar \: prim \: si \: \overline{2a} < 25[/tex]
[tex] \implies \overline{2a} = 23[/tex]
[tex]\frac{3}{46} = \frac{x}{ \overline{2a} } \iff \frac{3}{46} = \frac{x}{23} \\ x = \frac{3 \times 23}{46}\implies x = \frac{3}{2} [/tex]
