The superlative in English is expressed in words such as "best," "biggest," "strongest," etc. It's a frequently used construction in the English manner of speech, but is comes far less often into play in French. Generally, the French avoid superlatives. It nevertheless exists and is formed by combining the definitive article with the comparative form of the adjective or adverb:
 

As you can see from these examples, the superlative is placed in the same position as the adjective or adverb.