Question

How do you find the gcf of `18x + 15y`?

Answer 1

`3`

Explanation:

`x" and "y" have no other common factors but 1"`

`"the factors of 18 and 15 are"`

`18to1,2,color(red)(3),6,9,18`

`15to1,color(red)(3),5,15`

`"the gcf being "color(red)(3)`

`"the gcf of "18x+15y" is therefore 3"`