Answer:
60
Step-by-step explanation:
The shaded region's area is the difference between the area of the outer rectangle and the white rectangle.
area = LW - lw
area = (4 + 4)(9 + 3) - (4)(9)
area = (8)(12) - 36
area = 96 - 36
area = 60
You can divide the numerator and denominator each by 3.
5 can simplify 15, but it can't 9.
9 / 3 = 3
15 / 3 = 5
9/15 simplified is 3/5.
