Question

(-8 quince avos -3 cuartos )+[-9 sextos -(-7 decimos )]

Answer 1

$( - \frac{8}{15} - \frac{3}{4} ) + ( - \frac{9}{6} - ( - \frac{7}{10} ))$
$(\frac{ - 32 - 45}{60} ) + ( - \frac{9}{6} + \frac{7}{10} )$
$- \frac{77}{60} + ( \frac{ - 90 + 42}{60} )$
$- \frac{77}{60} + ( - \frac{48}{60} )$
$- \frac{77}{60} - \frac{4}{5}$
$\frac{ - 385 - 240}{300}$
$- \frac{25}{12}$