Question

14/4-3/7×2,5 cum se rezolva acest exercitiu?.

Answer 1

$\frac{14}{4}- \frac{3}{7}*2,5= \frac{14}{4}- \frac{3}{7}* \frac{5}{2}= \frac{14}{4}- \frac{15}{14}=\frac{14*7-2*15}{28}= \frac{68}{28}= \frac{17}{7}$