Resposta :
[tex] \frac{630}{126}=5 [/tex]
[tex] \frac{360}{900}=> \frac{360:180}{900:180} => \frac{2}{5} [/tex]
[tex] \frac{360}{900}=> \frac{360:180}{900:180} => \frac{2}{5} [/tex]