### Home > PC3 > Chapter 4 > Lesson 4.1.1 > Problem4-12

4-12.

​ Rewrite each of the following expressions as a single reduced fraction.

1. $\frac { \frac { 1 } { 2 } } { \frac { \sqrt { 3 } } { 2 } }$

Multiply the numerator by the reciprocal of the denominator.
1. $\left(\frac{1}{x}-x\right)\left(\frac{1}{x+1}-1\right)$
$\left(\frac{1-x^2}{x}\right)\left(\frac{1-(x+1)}{x+1}\right)$