Simplify:
$\frac{\frac{1}{4}+\frac{5}{7}}{\frac{2}{5}}$
$\frac{98}{71}$
$\frac{135}{56}$
$\frac{81}{7}$
$\frac{27}{70}$
$\frac{47}{5}$
Solve for :
-4x - 12 < 15
x < 15-4x
$x<\frac{15}{4}$
$x < \frac{27}{4}$
$x > -\frac{27}{4}$
$x > \frac{15}{4}$
: