The main slogan of the French Revolution was 'liberty, equality, fraternity' and it differed from the slogan of the American Revolution as it didn't sound as radical and violent as that of the American Revolution.
<u>Explanation:
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The American ideal of the revolution was inspired by the desire for freedom from the unjust British administration, whereas, the main concern of the French was regarding equal treatment.
Hence, the mottos and slogans of the two revolutions differed from each other on the grounds of ideology.