Which is the correct way to say "It's necessary to understand it better"?

"Il faut le mieux comprendre."
"Il faut mieux le comprendre."

The correct way to say "It's necessary to understand it better" in French is "Il faut mieux le comprendre." Let me explain why:

In French, the verb "comprendre" (to understand) can be followed by a pronoun to indicate what is being understood. In this case, we want to specify that "it" should be understood better. The pronoun "it" is represented by the pronoun "le" in French.

When using the verb "falloir" (to be necessary), the construction is "Il faut" followed by the verb in the infinitive form. In this case, we want to say "It is necessary to understand," so we use "Il faut comprendre."

To indicate that "it" should be understood better, we need to place the pronoun "le" right before the verb "comprendre." Here, "le" represents "it," and "comprendre" means "to understand."

Therefore, the correct way to say "It's necessary to understand it better" in French is "Il faut mieux le comprendre."