The dough left over is 2 7/9 pounds.
A fraction is a quantity that is not an integer. A fraction usually has a numerator and a denominator. The numerator is the number above. While the denominator is the number below
An example of a fraction is 4/5. 4 is the numerator while 5 is the denominator
Fraction that is left over = 1 - 4/9 = 5/9
Pounds left over = 5/9 x 5 = 25/9 = 2 7/9
To learn more about fractions, please check: https://brainly.com/question/2577935