Triangle ABC is similar to triangle JKL. They both have the same angle amounts.
For this case we have that by definition:

So:

We apply distributive property that states that:

In addition, we take into account that:


Answer:

Option B

÷

Multiply

by the reciprocal of

, which is

=

×

=

We can simplify it further:
The greatest common factor here is
168
=