Step-by-step explanation:
In the exercise we can see that it is a division of fractions because we need to know exactly how much length corresponds to each panel, for that we must divide the mixed fraction between the 7 panels.
Now to be able to do a correct division of fractions it is necessary that the mixed fraction becomes an improper fraction and the integer 7 must be converted into a fraction.
Now following the steps already mentioned, the exercise will be as follows: