SOLUTION:
We want to express as a fraction;
[tex]\begin{gathered} 2\text{ }days\text{ }to\text{ }42\text{ }hours \\ 1\text{ }day=24\text{ }hours \\ 2\text{ }days=48\text{ }hours \\ \end{gathered}[/tex]Thus, the ratio becomes;
[tex]\begin{gathered} 48\text{ }hours\text{ }to\text{ }42\text{ }hours \\ =\frac{48}{42}=\frac{8}{7}=1\frac{1}{7} \end{gathered}[/tex]Thus, the ratio expressed as a fraction is;
[tex]\frac{8}{7}[/tex]