Question 534400
7w-63/4 divided by w-9/10w
={{{((7w-63)/4)/((w-9)/10w)}}}
={{{((7w-63)/4)*((10w)/(w-9))}}}
={{{(7(w-9)/4)*(10w/(w-9))}}}
={{{(7cross(w-9)/cross(4))*(cross(10)w/cross(w-9))}}}
={{{(7/2)*(5w))}}}
={{{(7*5w)/2)}}}
={{{35w/2)}}}
={{{(17&1/2)(w)}}}