Lila collected the honey from 3 of her beehives. from the first hive she collected 2/3 gallon of honey. the last two hives yielded 1/4 gallon each.
a. how many gallons of honey did lila collect in all?

Lila collected 7/6 gallons of honey, which is 1 1/6 gallons of honey.
Here is how to do it:
 to add fractions you need the denominators to be the same, so you multiply the values in the fractions to get a denominator of 6.--> 4/6+3/6. 
Then we add the numerators.--> 7/6. 
Then we simplify 7/6, which is 1 1/6.

Ithink it would be 1.24 pounds