Respuesta :
You have to add the 5 and the 2 to get 7 and then divide 3.5 by 7. And hold on one sec
5+2=7 3.5 divided by 7 which is 0.5. Then 5 x 0.5 =2.5 Then 2 x 0.5 =1 So the ratio is 2.5 : 1
