Réponses

2012-10-14T17:28:38+02:00

5/4 + 11/4 x 20/33 =

5/4 + 11x20/4x33 =

5/4 + 44/660 = 

5/4 + 11/165 =

 

5X165 + 11X4 / 4X165=

 

869/660