Name the property of 75 + 6 = 6 + 75

Adam drew two same size rectangles and divided them into the same number of equal parts. he shaded 1/3 of one rectangle and 1/4 of the other rectangle. what is the least number of parts into which both rectangles could be divided into?

Acar travels at an average speed of 52 miles per hour. how long does it take to travel 299 miles

Rewrite so the subject can be y in the formula d=m-y/y+n