Grid Fraction Problem: Identifying the 3/7 Shaded Region

To solve this problem, we will count the total number of equal sections in the grid and the number of these sections that the marked area covers.

• Step 1: Determine Total Sections. The grid is divided into several vertical sections. By examining the grid lines, we see that the total number of vertical sections is 7.
• Step 2: Determine Marked Sections. The marked (colored) part spans 3 of these vertical sections within the total grid.
• Step 3: Compute Fraction. The fraction of the total area covered by the marked part is calculated as the number of marked sections divided by the total number of sections: $\frac{3}{7}$.

Therefore, the fraction of the area that is marked is $\frac{3}{7}$.