i2C master/slave Arduino uno Programming to run 2 motors at once off 2 boards

I am attempting to run a master/slave receiver arduino using two arduino uno's. I'm synchronizing both Arduino to control 1 dc motor and 1 stepper motor at once which each of the Arduino UNO board controlling a single motor. Is it possible to code for the first Arduino UNO to control 1 motor and the second arduino UNO controlling another motor at the same time? Im making doing an autonomous robot which contain 3 DC motor, 1 stepper motor, 4 servo motor and 2 arduino UNO. How do i program the master and the slave arduino to have one run the dc motor and one run the stepper motor at the same time. Need help in this i2c part with the programming. Thanks