Answer
$-27\frac{5}{14}$
Work Step by Step
$-12\frac{1}{7}+(-15\frac{3}{14})$
$=-12\frac{1}{7}-15\frac{3}{14}$
$=-(12\frac{1}{7}+15\frac{3}{14})$
$=-(12\frac{2}{14}+15\frac{3}{14})$
$=-27\frac{5}{14}$
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