THree fourths of all plants and animals.

Sentence run-on or fragment?

fragment

Right.

To determine if the sentence "THree fourths of all plants and animals" is a run-on or a fragment, we need to understand the definitions of these terms.

A run-on sentence occurs when two or more independent clauses are connected without appropriate punctuation or conjunctions. An independent clause is a complete thought that can stand alone as a sentence.

On the other hand, a fragment is an incomplete sentence that lacks either a subject, a verb, or a complete thought.

Taking a closer look at the sentence you provided, "THree fourths of all plants and animals," it appears to be a fragment rather than a run-on sentence. It lacks a clear subject and verb, making it incomplete. However, if we assume that "THree fourths" is intended to be "Three fourths," the corrected sentence would be "Three fourths of all plants and animals."

In summary, the sentence "THree fourths of all plants and animals" is a fragment.

I'll be glad to check your answer.