Răspuns :
[tex] \frac{2}{5} - \frac{4}{3} X (- \frac{9}{8} )
[/tex][tex] \frac{2}{5} - (-\frac{3}{2} )= \frac{4}{10}-(- \frac{15}{10} )= \frac{19}{10} [/tex]
2/5-4/3*(-9/8)=2/5+3/2(se simplifica 3 cu 9 si 4 cu 8)=4/10+15/10(se aduce la acelasi numitor)=19/10