39 is 48.75 percent of 80.
For the first: 3 pounds between 6 people = 3/6 = 1/2 lb/person.
For the second: 1.5 pounds between 6 people = 1.5/6 = 1/4 lb/person.
For the third: 3 6/7 pounds between 6 people = (27/7)/6 = 9/14 lb/person.
For the last: 3 3/4 pounds between 6 people = (15/4)/6 = 5/8 lb/person.
you would round it to 1.7 so aubra would be correct. This is because if the last digit in the number you are rounding id over 4 your round it up. For example 55 would round to 60.
4.34 would round to 4.30