Answer: 7/12 of the band practice time is spent on playing music.
Step-by-step explanation:
The data we have is:
On friday, the band spent 1/6 of the time in triyinh uniforms and 1/4 of the time on practice marching.
Then the amount of time that the band did not practice music is:
1/6 + 1/4 of their total time:
we know that 12 is a common multiple of both, 6 and 4, so we can write this as:
2/12 + 3/12 = 5/12
Then the total time that the band practices music is:
1 - 5/12 = 7/12
