[tex]a)~\frac{4}{3} x = \frac{5}{9} \\ \\ x= \frac{5}{9}: \frac{4}{3} \\ \\ x = \frac{5}{9} * \frac{3}{4} \\ \\ x = \frac{5}{12} \\ \\ \\ b) \frac{5}{2} x = \frac{3}{8} \\ \\ x = \frac{3}{8}: \frac{5}{2} \\ \\ x = \frac{3}{8} : \frac{2}{5} \\ \\ x = \frac{3}{20} \\ \\ Sper~ca~te-am~ajutat![/tex]