Question
Evaluate:
$-3-\frac{4}{7}$
$-3-\frac{4}{7}$
✓
Answer
$-3-\frac{4}{7}$
$=\frac{-3}{1}-\frac{4}{7}$
LCM of 1 and 7 = 7
$\therefore\frac{-3}{1}=\frac{-3\times7}{1\times7}=\frac{-21}{7}$
$\therefore\frac{-21}{7}-\frac{4}{7}$
$=\frac{-21-4}{7}$
$=\frac{-25}{7}$
$=\frac{-3}{1}-\frac{4}{7}$
LCM of 1 and 7 = 7
$\therefore\frac{-3}{1}=\frac{-3\times7}{1\times7}=\frac{-21}{7}$
$\therefore\frac{-21}{7}-\frac{4}{7}$
$=\frac{-21-4}{7}$
$=\frac{-25}{7}$
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