Thread: Binary subtraction using 2's complement

1. Binary subtraction using 2's complement

Subtract 1010 from 1110 using 2's complement subtraction.

I got the following:

1110
0001
+1
0010

1010
0010
1100

0100

1011

1011
+1
1100

MSB = -

1010 from 1110 = 0100

Is this correct?

2. Hi gary223,

To subtract 01010 from 01110 in binary,
Invert all the bits of 01010 and add 1 gives 10101+0001=10110

$\color{blue}11100\ carry$
$01110$
$10110$
------
$00100$

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subtract (01110)2 from (10101)2 using binary arithmetic

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