In the sentence about students learning to divide fractions, which part indicates no error?

The choice indicating "no error" suggests that the sentence as a whole is correctly structured and free from grammatical or contextual mistakes. In the context of the sentence about students learning to divide fractions, the phrase likely communicates clearly and effectively without requiring any adjustments.

When assessing individual options, while some phrases might seem grammatically correct on their own, they don't necessarily indicate an absence of error in the entire sentence. The selection affirming "no error" means the overall construction, including the subject and the action described, conforms to standard English usage. This implies that the intention of the sentence, which is to convey that students are learning a specific skill (in this case, dividing fractions), is executed properly without any grammatical concerns. Thus, this choice stands out as the correct indication of the sentence's integrity.