Adding Rational Expressions with the Same Denominator
Adding rational expressions with the same denominator is like adding fractions with the same denominator.
Procedure â€” To Add Rational Expressions with the Same Denominator
Step 1 Add the numerators. Write this sum as the numerator over the common denominator.
Step 2 Reduce to lowest terms.
Hereâ€™s an example of adding fractions:
Add and write the answer in lowest terms:
The denominators are the same. Add the numerators and write the sum over the common denominator, 4.
To reduce, cancel the common factor, 2, in the numerator and denominator.