Question

fraccion+de+una+fraccion+4/9+de+9/21

Answer 1

¡Hola!.

Resolvemos.

$\frac{4}{9}$   $de$   $\frac{9}{21}$

$\frac{4}{9} * \frac{9}{21}$

$\frac{4*9}{9*21}$

$\frac{36:3}{189:3}$

$\frac{23}{63}$