What are the differences between the 10 percent plan and the Radical Republican's plan?

There were basically 3 plans for Reconstruction, Lincoln’s plan, Johnson’s plan, and the Radical Republican plan.

Lincoln’s plan was known as the 10% Plan. It was simple. With a few exceptions, Lincoln offered pardons to any Confederate who swore allegiance to the Union and the Constitution. When the number of people who took an oath of allegiance equaled 10% of the number of voters who participated in the election of 1860, the state would be readmitted to the Union after organizing a new state government which abolished slavery. Lincoln was assassinated before this plan could be put into effect.

Johnson’s plan was also lenient towards the southern states. He would grant pardons to anyone taking a loyalty oath to the U. S. except for high ranking Confederate political and military leaders, and people owning property worth more than $20,000. States would be readmitted to the Union once they created a new state government that abolished slavery, repealed the state’s ordinance of secession, and repudiated Confederate debts. This was put into effect when Congress was in recess. Johnson’s Plan did not really address the fortunes of newly freed slaves and southern states began to pass "black codes", or laws which severely limited the civil rights of freedmen. When Congress reconvened, it refused to recognize Johnson’s plan by refusing to seat any person elected to Congress from any former Confederate state. It then began to pass its own laws concerning the southern states.