491/25
Explanation:To convert 19.64 to farction, we need to know the number of decimal numbers after the point. We have two numbers after the point. This represents hundred. Hence, we would be dividing by 100.
[tex]19.64\text{ = }\frac{1964}{100}[/tex]We can write in the lowest form:
[tex]\begin{gathered} \text{Divide the numerator and denominator by 4} \\ 19.64\text{ = }\frac{1964\div4}{100\div4} \\ 19.64\text{ = }\frac{491}{25} \end{gathered}[/tex]