Answer:
20 Minutes
Explanation:
Fritz attended band practice for 5/6ths of an hours, which is equal to 50 minutes. The explanation is as follows: 1 hour = 60 minutes, 60 minutes can be split into 10 minute sixths, 5/6ths of an hour is 50 minutes. From here, we know he practiced for 2/5ths as long at home. Therefore, he practiced at home for 20 minutes. The explanation: 50 minutes can be split into 10 minute fifths, 2/5ths of 50 minutes is 20 minutes.