# How can -1 divided by -2.5 equal 0.4?

Mar 23, 2018

$\frac{2}{5} = \frac{4}{10} = 0.4$

#### Explanation:

We know that a negative divided by another negative will equal a positive, so we can ignore the negative signs.

Let's use $\frac{5}{2}$ instead of $2.5$

$\frac{1}{1} \div i \mathrm{de} \frac{5}{2} = \frac{2}{5}$

To convert to a fraction, we can set the denominator equal to $10$.
$\frac{2}{5} = \frac{4}{10} = 0.4$