What Do The French & American Revolution Have In Common?

The major common point in both the revolutions was that both french and americain fought against the British. And at the end of the Americain revolution french joined an elite that ended the americain revolution but for french the British won. See the link for more details

Common points

One big similarity is that in both countries, the revolutionaries were inspired by new ideas about forms of government based on people rather than obedience to a monarch. Authors like JJ Rousseau and Tom Paine, who believed that people were born equal, had influence on both.

There is a very detailed resource on the two revolutions here.