### Home > A2C > Chapter 9 > Lesson 9.3.1 > Problem9-129

9-129.

Frank says that $\frac { a } { x + b } = \frac { a } { x } + \frac { a } { b }$, while Fred does not think that the two expressions are equivalent. Who is correct? Justify your answer.

Fred is correct, substitute numbers to justify.