Question

(18 1 3) (10 1 2)
(---+---+---) /( ---+---+---)
(7 3 5 ) (3 5 3)

ajudem pfv

Answer 1

Olá.

$\mathsf{\left(\dfrac{18}{7}+\dfrac{1}{3}+\dfrac{3}{5}\right)/\left(\dfrac{10}{3}+\dfrac{1}{5}+\dfrac{2}{3}\right)=} \\\\\\\mathsf{\left(\dfrac{18\cdot15+1\cdot35+3\cdot21}{105}\right)/\left(\dfrac{10\cdot5+1\cdot3+2\cdot5}{15}\right)=} \\\\\\\mathsf{\left(\dfrac{270+35+63}{105}\right)/\left(\dfrac{50+3+10}{15}\right)=} \\\\\\\mathsf{\left(\dfrac{368}{105}\right)/\left(\dfrac{63}{15}\right)=} \\\\\\\mathsf{\dfrac{368}{105}\ /\ \dfrac{63}{15}=} \\\\\\\mathsf{\dfrac{368}{105}\cdot\dfrac{15}{63}=}$

$\mathsf{\dfrac{368\cdot15}{105\cdot63}=} \\\\\\\mathsf{\dfrac{5.520}{6.615}}\\\\\mathsf{Simplificando...}\\\\\mathsf{\left(\dfrac{5.520}{6.615}\right)^{:15}=\boxed{\mathsf{\dfrac{368}{441}}}}$

Qualquer dúvida, deixe nos comentários.
Bons estudos.