You are a land surveyor establishing the boundaries of a lot

You are a land surveyor establishing the boundaries of a lot. The northern boundary is 153 1/2 feet long. The western boundary is 64 1/4 feet long. The southern boundary is 144 1/2 feet long. The eastern boundary is 703/4 feet long. What is the perimeter of the property? 431 feet 431 2/3 feet 432 1/2 feet 433 feet 433 1/4 feet

perimeter= sum of the heights of boundaries

=> 153.5+64.25+144.5+70.75=433