Add 1101base2, 10111base2, and 111base2

Answer 1

We can change base two to base ten

Answer 2

 

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Step - 1

Converting binary numbers to the corresponding base - ten number.

Step - 2

Convert   to the corresponding binary number.

Divide repeatedly by 2.

      1  R0

    ___

2 ) 2  R1

   ___

2 ) 5  R0

  ____

2 ) 10 R1

  ____

2 ) 21 R1

   ____

2 ) 43

 These remainders tell me what the binary number is,write the numbers from around the out side of the division, starting on top and wrapping my way around and down on the right hand side.

Converts to .

Therfore