Question

VA rog urgent!!!
Si daca puteti sa o explicati,ca nu o inteleg!(dau 70 de puncte)

Answer 1

x/y = 5/9 => x = 5y/9

inlocuim

(4×5y/9 + 3y)/5y =

= (20y/9 + 3y)/5y

= (20y/9 + 27y/9)/5y

= (47y/9)/5y

= 47y/9 x 1/5y

= 47/45