Question

7/9 : 21/5 olha eu dinovo pfv

Answer 1

$\frac79\div\frac{21}{5}=\frac79\times\frac{5}{21}=\frac19\times\frac53=\frac{5}{27}$

Answer 2

7/9:21/5 = 5/27 resposta simplificada