Answer
0.14
Work Step by Step
Recall the following rule: $\frac{a}{b} \div \frac{c}{d}=\frac{a}{b} \times \frac{d}{c}$.
We convert the decimal into a fraction for the ease of simplification:
$-0.126\div(-0.9)$
=$-\frac{126}{1000}\div-\frac{9}{10}$
=$-\frac{126}{1000}\times-\frac{10}{9}$
=$-\frac{126}{100}\times-\frac{1}{9}$
=$-\frac{14}{100}\times-\frac{1}{1}$
=$\frac{14}{100}$
=$0.14$