We are asked to write the given rate as a fraction in the lowest terms.
[tex]20\: \text{feet in }40\text{ seconds}[/tex]
The above rate may be written in a fraction as
[tex]\frac{20\text{ f}eet}{40\text{ seconds}}[/tex]
Now let us simplify the fraction so that it is in the lowest terms.
[tex]\frac{20}{40}=\frac{10}{20}=\frac{5}{10}=\frac{1}{2}[/tex]
Therefore, the fraction in the lowest terms is
[tex]\frac{1}{2}[/tex]
