Afaucet can fill 3 8 of a bath tub in 1 4 of a minute. compute the unit rate by setting up a complex fraction and simplifying.

3/8 of the tub is filled in 1/4 min
We can divide the volume by the time to find out how long the tub will take to fill completely. Thus,
3/8 /(1/4)
= 3/8 x 4/1
= 3/2 minutes

The tub will fill in 3/2 or 1.5 minutes

Just look outside and then you’ll see where the awnser is