The amount of water Edgar should put in the birdbath is 1 1/2 gallons.
Fractions are numbers that are made up of both integers and non integers. An example of a fraction is 3/4. 3 is known as the numerator and 4 is the denominator.
In order to determine this value, multiply 2 by 3/4
2 x 3/4 = 6/4 = 1 2/4 = 1 1/2
To learn more about the division of fractions, please check: https://brainly.com/question/25779356