Angle DEF is similar to Angle HJK and the scale factor of angle DEF to anle HJK IS 5/2. If EF =15 FIND JK

Question

Here is what I came up with Am I correct
5/2 = EF/JK
5/2 =15/JK
5(JK)=30
JK=30/5
JK=6

Thanks much