Question

Plz solve by ratio and proportion

Answer 1

Answer:

a/b=c/d=e/f

a=be/f ;c= de/f

(a+c+e)/(b+d+f). =e/f

(be/f +de/f + e)/b+d+f

{(be + de +ef)/f}/b+d+f

e(b+d+f/f) X 1/(b+d+f)

e/f Proved