Respuesta :
					                   5/1 = x/3
cross multiply because this is a proportion
(1)(x) = (5)(3)
x = 15
so 5/1 = 15/3...notice that proportions are nothing but equivalent fractions
					                
					             cross multiply because this is a proportion
(1)(x) = (5)(3)
x = 15
so 5/1 = 15/3...notice that proportions are nothing but equivalent fractions
 
					                  