3/5 + 5/7 = 1 11/35 - 1/5 = 1 4/35 which is your final answer.
.25 or 1/4 Is the simplest form
It is so clear it is six feet, hello one foot shorter, the building is 5
For similar figures, the ratio of areas is the square of the ratio of linear dimensions. The smaller billboard requires
.. (4/5)^2 * 250 ft^2 = 160 ft^
of material.
