express in simplest form

**blame_canada100** · September 21st 2009, 11:56 AM

k/2 - k/6
----------
k/2 + k/2

**masters** · September 21st 2009, 12:30 PM

Originally Posted by blame_canada100

k/2 - k/6
----------
k/2 + k/2

Hi blame_canada100,

Are you sure this is right? The denominator looks kinda funny.

$\frac{\frac{k}{2}-\frac{k}{6}}{\frac{k}{2}+\frac{k}{2}}=\frac{\frac{ 3k-k}{6}}{\frac{2k}{2}}=\frac{\frac{2k}{6}}{k}=\frac{ \frac{k}{3}}{k}=\frac{k}{3}\cdot \frac{1}{k}=\frac{1}{3}$

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