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## Show that a full adder can be constructed using two half adders.

digital design.By:prajwalamv

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|arunwebber

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## Answers

We can implement a full adder circuit with the help of two half adder circuits. At first, half adder will be used to add A and B to produce a partial Sum and a second half adder logic can be used to add C-IN to the Sum produced by the first half adder to get the final S output.

If any of the half adder logic produces a carry, there will be an output carry. So, COUT will be an OR function of the half-adder Carry outputs.

Aparna-Dasgupta

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