Question
Evaluate: $\frac{-5}{14}-\frac{-2}{7}$
✓
Answer
$\frac{-5}{14}-\frac{-2}{7}$
$LCM$ of $14$ and $7 = 14$
$\therefore\frac{-2}{7}=\frac{-2\times2}{7\times2}=\frac{-4}{14}$
$\therefore\frac{-5}{14}-\frac{-2}{7}$
$=\frac{-5}{14}-\Big(\frac{-4}{14}\Big)$
$=\frac{-5}{14}+\frac{4}{14}$
$=\frac{-5+4}{14}$
$=\frac{-1}{14}$
$LCM$ of $14$ and $7 = 14$
$\therefore\frac{-2}{7}=\frac{-2\times2}{7\times2}=\frac{-4}{14}$
$\therefore\frac{-5}{14}-\frac{-2}{7}$
$=\frac{-5}{14}-\Big(\frac{-4}{14}\Big)$
$=\frac{-5}{14}+\frac{4}{14}$
$=\frac{-5+4}{14}$
$=\frac{-1}{14}$
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