Question

........................​

Answer 1

Răspuns:

Explicație pas cu pas:

$- \frac{4}{5} \times \Big( - \frac{15}{8} \Big) - \frac{7}{4}$

$= \frac{\not4}{\not5} \times \frac{\not15}{\not8} - \frac{7}{4}$

$= \frac{ {}^{2)} 3}{2} - \frac{7}{4}$

$= \frac{6}{4} - \frac{7}{4} = \frac{6 - 7}{4} = \boxed{ - \frac{1}{4} }$