# How do you find the LCD of 12x , 40y?

Jul 29, 2017

See a solution process below:

#### Explanation:

We can rewrite $12 x$ as $\textcolor{red}{4} \times 3 x$

We can write $40 y$ as $\textcolor{red}{4} \times 10 y$

To find the LCD multiply the common factor in each term by the factors that are not common for both terms:

LCD $= \textcolor{red}{4} \times 3 x + 10 y = 120 x y$