0:00:00.005,0:00:03.911
So whenever we want to add rational expressions together we should find the
0:00:03.911,0:00:08.199
lowest common denominator of our fractions. The lowest common denominator is the
0:00:08.199,0:00:12.230
product of all of the different factors that appear in each denominator. Keep in
0:00:12.230,0:00:16.129
mind that we want to take the highest power of any factor that appears in a
0:00:16.129,0:00:21.332
denominator. We're not going to jump into the entire process yet. Let's just get
0:00:21.332,0:00:25.572
comfortable with this first step of finding the lowest common denominator.