how multiply a fraction with a negative denominator by two
First, let's write a fraction with a negative denominator:
[tex]\frac{5}{-2}[/tex]The denominator is negative.
Now, we multiply this fraction by 2, as shown:
[tex]\begin{gathered} \frac{5}{-2}\times2 \\ =\frac{5\times2}{-2} \\ =\frac{10}{-2} \\ =-5 \end{gathered}[/tex]