Question

E urgent!!!
Daca $\frac{a}{b}$ = $\frac{4}{9}$, aflati: $\frac{5a}{5b}$; $\frac{a}{-3b}$; $\frac{13a}{-4b}$; $\frac{b}{11a}$; $\frac{-12b}{13a}$.

Answer 1

$\frac{5a}{5b}$=$\frac{20}{45}$
$\frac{a}{-3b} = \frac{4}{-27}$
$\frac{13a}{-4b} = \frac{52}{-36}$
[tex] \frac{b}{11a} = \frac{4}{99} [/tex]
$\frac{-12b}{13a} = \frac{-48}{117}$