I'm working on a problem here where I believe one of the steps uses voltage division to find the voltage across the 10ohm resistor. However, that's not how the solution found the voltage across the 10ohm resistor.

I was trying to find the voltage across the 40ohm resistor first and then that voltage would be equal to the 10ohm resistor's voltage because they are in parallel. I had the voltage division equation as: V=240* (40/(12+4+40)).

What am I doing wrong?

Thanks for the help.