Question

Voice change
Have you done the sum?(Passive)

Answer 1

is the sum done by you. this is right answers

Answer 2

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Has the sum been done by you ?

Structure :

Has/have + object + been + past participle form of the verb + by + Subject + question mark

Explanation :

To convert Interrogative Sentences of Present Perfect to Passive Voice, we put has/have as the subject of the sentence and use a Question mark after the Subject.