## Algebra: A Combined Approach (4th Edition)

Difference of the number and 1: $x-1$ Reciprocal of the difference of the number and 1: $\frac{1}{x-1}$
Part 1: Since the number is x, the difference of the number and 1 means that the required expression is $x-1$ Part 2: The reciprocal of the difference of the number and 1 means that we need to take the reciprocal of the expression in part 1. Therefore, the required expression is $\frac{1}{x-1}$