Question

Subtract 1010 from 1001 in binary

Answer 1

Given that;

Subtract 1010 from 1001 in binary

Converting from binary to base ten (decimal value)

`\begin{gathered} 1^30^21^10^0=1*2^3+0*2^2+1*2^1+0*2^0=8+0+2+0=10 \\ 1^30^20^11^0=1*2^3+0*2^2+0*2^1+1*2^0=8+0+0+1=9 \end{gathered}`

Subtracting the numbers

`=10-9=1`

In binary,

Hence, the answer is 1