You can put this solution on YOUR website! Something that is not often made clear about absolute value is that, in addition to what absolute value means (distance from zero), it also counts as a grouping symbol. So one should go through the operations inside of an absolute value before you find the absolute value. This is the key to your problem.
So we start by performing the operations inside the absolute values:
Next we find the absolute values:
Next simplify the numerator:
Reduce