To write the ratio as a fraction in lowest terms (no decimals):
10.4 hours to 0.4 hours.
In ratio, we can write it as
10.4 : 0.4
Multiply 10 on both sides we get,
104 : 4
That is, in fraction form
[tex]\begin{gathered} \frac{104}{4}=\frac{52}{2} \\ =\frac{26}{1} \end{gathered}[/tex]Hence, the fraction form in lowest terms is,
[tex]\frac{26}{1}[/tex]