Answer:

A. 30 and 75

Step-by-step explanation:

Alright so, the given GCF is 5.

Now, we divide 30 and 5.

30 / 5 = 6

And, same with 75.

75 / 5 = 15.

These two numbers are divisible to 3

Now, we divide 6 with 3.

6 / 3 = 2

And, same with 15.

15 / 3 = 5

Now, we can't divide 2 and 5 because they are only divisible to 1.

So, pack the numbers and multiply them.

5 3 2 5

5 3 = 15

15 2 = 30

30 5 = 150

The GCF is 15.

Hence, the LCM of this equation is 150