# How do you order the following from least to greatest -sqrt5, pi/2, pi/3, 4 5/8, sqrt18?

Mar 28, 2017

$- \sqrt{5} , \frac{\pi}{3} , \frac{\pi}{2} , \sqrt{18} , 4 \frac{5}{8}$

#### Explanation:

$- \sqrt{5}$ is the only negative number so it is the smallest.

$\frac{1}{3} < \frac{1}{2}$, so $\pi = 3.14159 \ldots$ will make $\frac{\pi}{3} \approx 1$ and $\frac{\pi}{2} \approx 1.5$

$\sqrt{18}$ is close to $\sqrt{16} = 4$, so $\sqrt{18} \approx 4.2$

$\frac{5}{8} = 0.625$, so $4 \frac{5}{8} = 4.625$