Solve -1/n+m/n^2

$$- \frac { 1 } { n } + \frac { m } { n ^ { 2 } }$$

Evaluate

$$\frac{m-n}{n^{2}}$$

Solution Steps

To add or subtract expressions, expand them to make their denominators the same. Least common multiple of n and n^{2} is n^{2}. Multiply -\frac{1}{n} times \frac{n}{n}.

$$-\frac{n}{n^{2}}+\frac{m}{n^{2}}$$

Since -\frac{n}{n^{2}} and \frac{m}{n^{2}} have the same denominator, add them by adding their numerators.

$$\frac{-n+m}{n^{2}}$$

Factor

$$\frac{m-n}{n^{2}}$$