Respuesta :

3/15
= (3/3) / (15/3)
= 1/5

8/3
= (6+2)/3
= 6/3+ 2/3
= 2+ 2/3
= 2 2/3

1 4/6
= 1+ 4/6
= 6/6+ 4/6
= 10/6
= 5/3