For me, It's easy to understand to Simplify Rational Algebraic Expressions because only factor can be cancelled out NOT the term. Finding the Least Common Denominator or LCD is familiar to us. First, It's easy to get the factor, at the end I realized that this is difficult because it has many thing to do in solving. Like we get the prime factors of two denominator, we align the factors in column and Lastly, we multiply all the same factors.
It has many step to do???
Simplify and Finding the LCD of Rational Algebraic Expressions are both of our topic this week.

