Răspuns:
[tex] \red{\bf a =\dfrac{16}{15} }[/tex]
Explicație pas cu pas:
[tex] \bf a = \bigg(\dfrac{ ^{5)} 1 \: }{3} + \dfrac{^{3)} 1 \: }{5} \bigg ): \dfrac{1}{2} [/tex]
[tex]\bf a = \bigg(\dfrac{5}{15} + \dfrac{3}{15} \bigg ) \cdot \dfrac{2}{1} [/tex]
[tex]\bf a =\dfrac{5 + 3}{15} \cdot \dfrac{2}{1} [/tex]
[tex]\bf a =\dfrac{8}{15} \cdot \dfrac{2}{1} [/tex]
[tex] \red{\bf a =\dfrac{16}{15} }[/tex]
