voltage divider in series and parallel circuit
We don't give complete answers to homework here.

However, consider in the left circuit that R1 and R3 are in parallel, and R2,R4 are in parallel.  In the right circuit, R1+R2 is in parallel with R3+R4.

Given these observations, it should be easy to find the voltages everywhere, which is a start on finding the currents.

That's one way to solve this.  There are several equivalent ways.