Answer :
To write the following as a fraction, we will;
First write the decimal over 1
That is;
[tex]\frac{-1.64}{1}[/tex]Then multiply the numerator and the denominator by 100
[tex]\frac{-1.64\text{ }\times100}{1\text{ }\times100}[/tex][tex]\frac{-164}{100}[/tex]Now, go ahead and reduce the fraction
[tex]=-\frac{41}{25}[/tex][tex]=\text{ -1}\frac{16}{25}[/tex]