#### Answer

Reciprocal of a number = $\frac{1}{x}$
Reciprocal of the number, decreased by 3= $\frac{1}{x}-3$

#### Work Step by Step

Part 1: Reciprocal of a number means dividing that number by 1.
Since the number is x, 1 divided by x is $\frac{1}{x}$.
Part 2: Reciprocal of the number, decreased by 3 means subtracting 3 from the reciprocal of the number.
Since the reciprocal of the number is $\frac{1}{x}$, subtracting 3 from it gives the expression $\frac{1}{x}-3$