-0.6 is a decimal number in which the digit 6 is at the tenth place.
A mixed number contains a whole number and a fraction part. In -0.6, the fraction part is [tex]\frac{6}{10}[/tex]
Therefore, -0.6 as a fraction is [tex]-\frac{6}{10}[/tex]
The simplest form of the fraction [tex]\frac{6}{10}[/tex] is [tex]\frac{3}{5}[/tex]
Therefore, -0.6 is the simplest form is [tex]-\frac{3}{5}[/tex]