Question

Ma puteti ajuta cu rezolvarea la exercitiile din poza de mai jos?

Answer 1

$1).- \frac{8}{5} + \frac{2}{3} \cdot (- \frac{9}{4} )=- \frac{8}{5} - \frac{18}{12} =- \frac{8}{5} - \frac{9}{6} =- \frac{48}{30} - \frac{45}{30} =- \frac{93}{30} =- \frac{31}{10} \\ \\ 2).2 \cdot 1,7+4:0,8=3,4+5=8,4$