Chapter 11.4, Problem 1P

Add or subtract.

$\frac{1}{a}+\frac{1}{a}$

To determine

To add or subtract the expression.

Answer to Problem 1P

The sum is $\frac{2}{a}$ .

Explanation of Solution

Given information:

The given expression is:

  $\frac{1}{a}+\frac{1}{a}$

Calculation :

The solution can be obtained by:

  $\begin{array}{l}\frac{1}{a}+\frac{1}{a}\\ =\frac{1+1}{a}\left[\text{Add the numerators}\right]\\ =\frac{2}{a}\end{array}$

Hence, the sum is $\frac{2}{a}$ .