Question

(2/5+8/10) por (2/3-1/9)

Answer 1

Respuesta:(1/6)

Explicación paso a paso:

2/5+8/10=20+40/50=60/50= 1 10/50

2/3-1/9=18-3/18= 15/18

1 10/50x15/18=10/50x15/18=150/900= 75/450=25/150=5/30=( 1/6)

Answer 2

Respuesta:

Explicación paso a paso:

$\left(\frac{2}{5}+\frac{8}{10}\right)\:\cdot \left(\frac{2}{3}-\frac{1}{9}\right)\\\\\left(\frac{2}{5}+\frac{4}{5}\right)\left(\frac{2}{3}-\frac{1}{9}\right)\\\\\frac{6}{5}\left(\frac{2}{3}-\frac{1}{9}\right)\\\\\frac{6}{5}\cdot \frac{5}{9}\\\\=\frac{2}{3}$