Question

ayuda por favor doy corona ​

Answer 1

Explicación paso a paso:

caso 1

$\frac{6}{5} \times \frac{5}{9} = \frac{30}{45} = \frac{6}{5}$

caso 2

$\frac{4}{5} - \frac{4}{7} = \frac{ 8}{35}$

caso 3

$\frac{5}{4} + \frac{5}{9} + \frac{2}{6} = \frac{65}{36} + \frac{2}{6} = \frac{90 + 72}{216} = \frac{77}{36}$