Simplifying Rational Expression Online Tutoring - Tutorpace

Simplifying Rational Expression Online Tutoring - Tutorpace Expressions consist of one or more than one unknown variables with different coefficients and constant numbers. Rational expression is an expression which consists of terms in the fraction form i.e. p / q form. Here q cannot equal zero. There are various mathematical operations which are used to simplify and solve the given rational expressions. Example 1: Find the solution by simplifying the expression x2/ 9 - x2 / 3? Solution: The given question is on subtracting rational expressions. This question contains adding with the same polynomial x2. The first step of the question is to calculate the LCM of the denominators 9 and 3, is 9. Now 1 /9 and 1 /3 can be subtracted with the LCM of the denominators as 9. This makes the solution x2 / 9 - x2 / 3 = x2 / 9 - 3 x2 / 9 = -2x2 / 9. Hence the solution is -2x2 / 9. Example 2: Find the solution by simplifying the expression x /5 + 3 x/4? The given question is on Adding rational expressions. This question contains adding with the same polynomial x. The first step of the question is to calculate the LCM of the denominators 5 and 4, is 20. Now 1 / 5 and 3 /4 can be added with the LCM of the denominators as 20. This makes the solution x / 5 + 3 x / 4 = 4 x /20 +15 x /20 = 19 x / 20. Hence the solution is 19x/ 20.