Question

Qual a resposta ???????????

Answer 1

a)
$\frac{84}{72} = \frac{14}{12} = \frac{7}{6}$
b)
$\frac{54}{90} = \frac{9}{15} = \frac{3}{5}$
c)
$\frac{98}{ - 28} = \frac{49}{ - 14}$
d) 147/189=49/63