Question

(8,85+4,15)×
$\frac{1}{5}$
×(
$\frac{1}{2}$
÷0,2)=

помогите пожалуйста​

Answer 1

$=\left(8.85+4.15\right)\frac{1}{5}\times \frac{\frac{1}{2}}{0.2}$

$=13\times \frac{1}{5}\times \frac{\frac{1}{2}}{0.2}$

$=13\times \frac{1}{5}\times \frac{1}{0.4}$

$=\frac{1\times \:1\times \:13}{5\times \:0.4}$

$=\frac{13}{5\times \:0.4}$

$=\frac{13}{2}$

$=6.5$