Question 55645
I edited your question, if I misinterpretted you let me know and I'll change this.
Simplify:
{{{5x/(x+4)+20/(x+4)}}}  The denominators are already the same, so we can simply add the numerators:
{{{(5x+20)/(x+4)}}}  Factor the GCF out of the numerator:
{{{5(x+4)/(x+4)}}} Cancel the factors in common between the numerator and denominator:
{{{5*cross((x+4))/cross((x+4))}}}
{{{highlight(5)}}}
Happy Calculating!!!