## Introductory Algebra for College Students (7th Edition)

$\frac{40}{x+40}$
Since there are forty women in the room and we want the fraction of women, 40 must be the numerator. Then the total people in the room must be the sum of men and women. This can be written as x+40, which will be the denominator. The result is $\frac{40}{x+40}$