the dolphin ate
2604 lbs of fish in 31 days
this can also be written as
2604/31
we want the denominator to be 1, since the denominator represents days
to do this, we can divide 31 by 31. but we must do the same to the numerator
2604 รท 31 = 84
so our new fraction is
84/1
so per day, the dolphin ate 84 pounds of fish