Respuesta :
5/6 of an hour is 50 minutes, so we know that band practice ran 50 minutes.
If he went home and practiced for 2/5 of 50 minutes, that means that he practiced for 20 minutes.
Fritz practiced for 20 minutes at home.
If he went home and practiced for 2/5 of 50 minutes, that means that he practiced for 20 minutes.
Fritz practiced for 20 minutes at home.