EXPLANATION:
The first thing to do is to pass the mixed fractions to integers, then a fraction subtraction is required to see the difference between the length of the two lines.
To convert a mixed fraction into improper, follow these steps:
-Multiply the whole part by the denominator.
-Add it to the numerator.
-Then write the result above the denominator.
Now, following the steps already mentioned, the exercise is as follows:
[tex]\begin{gathered} 9\text{ }\frac{1}{3}=\frac{28}{3} \\ 3\frac{1}{2}=\frac{7}{2} \\ \text{Now }we\text{ must substract}\colon \\ \frac{28}{3}-\frac{7}{2}=\frac{56-21}{6}=\frac{35}{6} \\ \\ In\text{ fraction is longer }\frac{35}{6}\text{ which is the same in decimal 5.8} \end{gathered}[/tex]