Question

quando multiplicamos1,5por0,555...obitemos:5/6

Answer 1

$0,55... = \frac{5}{9}$
$1,5 = \frac{15}{10}$
$\frac{15}{10} * \frac{5}{9} = \frac{75}{90}$
$\frac{75:15}{90:15} = \frac{5}{6}$