Respuesta :
4/2 forms a proportion because it can be simplified further into 2.
20/6 forms a proportion because it can be simplified to 10/3
20/6 forms a proportion because it can be simplified to 10/3
4/2 forms a porportion because it is equal to 2
20/6 forms a porportion to 10/3
20/6 forms a porportion to 10/3