**Adding Using the LCD**

Let’s finish adding and :

The least common denominator, LCD, is 2 . 2 . 3 . 5. To get the LCD in the first denominator, we need a 5. To get the LCD in the second denominator, we need another 2. We get these numbers by multiplying by form of 1:

Multiplying by 1

= Each denominator is now the LCD.

= Adding the numerators and keeping the LCD

= Factoring the numerator and removing a factor of 1: = 1

= . Simplifying