Question

Find the LCD of the list of fractions 7/20, 5/15

Answer 1

Step-by-step explanation:

First we have to find multiples of each of the denominators:

`\begin{cases}20\rightarrow20,40,60,80,100\ldots \\ 15\rightarrow15,30,45,60,75,90\ldots\end{cases}`

From those multiples we have to find which one is the least that is in both lists. In this case, the least number that's in both lists is 60

Answer:

LCD = 60