Triangles xyz and pqr are drawn on a square grid. what fraction of the area of triangle

The area of a triangle is given by .

From the given figure: The base of the bigger triangle is 6 units and the height is 3 units.
The base of the smaller triangle is 3 units and the height is 2 units.

The area of the big triangle is
The area of the small triangle is

The required fraction is

For this case we must solve the following equation:

Since the denominators on the right side of the equation are equal, then we add the fractions:

We subtract on both sides of the equation:

Thus, the value of p is 1.