Question

realiza las siguientes operaciones combinadas ayudaaaaa xfavor :c ​

Answer 1

$( \frac{1}{5} + \frac{1}{4} ) \div 1 - \frac{9}{5} \times ( \frac{9}{2} ) {}^{ - 2}$

$\frac{9}{20} - \frac{9}{5} \times ( \frac{2}{9} ) {}^{2}$

$\frac{9}{20} - \frac{9}{5} \times \frac{4}{81}$

$\frac{9}{20} - \frac{1}{5} \times \frac{4}{9}$

$\frac{9}{20} - \frac{4}{45} \\ \frac{13}{36}$