1. Lesson 3-5 Example 2 3-5 Example 2 1.Write the prime factorization of each denominator. 9 33 12 34 × 22 × ×

2. Lesson 3-5 Example 2 3-5 Example 2 2.Identify all common prime factors. 9 = 3 ● 3 12 = 2 ● 3 ● 3

3. Lesson 3-5 Example 2 3-5 Example 2 3.Find the product of the prime factors using each common prime factor once and any remaining factors. The LCD is 2 ● 2 ● 3 ● 3 = 36.

4. Lesson 3-5 Example 2 3-5 Example 2 4.Rename each fraction using 36 as the denominator.

5. Lesson 3-5 Example 2 3-5 Example 2 5.Add the like fractions.

6. Lesson 3-5 Example 2 3-5 Example 2 6.Write the answer in simplest form.