e)

e) $72=-\frac{144}{x}$ $R: 2$ g) $5=\frac{100}{x} \quad R: 20$ (20) a (2) Coloque $\left.\zeta_{1}\right\rangle_{u}=$ a) $\frac{4}{3}+\frac{5}{2} \square \frac{2}{4}+\frac{1}{5}$ b) $\frac{2}{6}+\frac{5}{3} \square \frac{5}{4}+\frac{2}{3}$ c) $\frac{5}{6}+\frac{8}{6} \square \frac{7}{3}+\frac{2}{3}$