To add binary numbers with fractions, we use exactly the same technique we used to add integer binary values. The only difference is that we need to keep track of the radix point so we can distinguish the fractional part of our answer from the integer part. The example below demonstrates how to add the binary numbers 110.01_{2} and 1.011_{2}.

110.01 + 1.011 

110.010 + 001.011 

110.010 + 001.011 1 

1 110.010 + 001.011 01 

1 110.010 + 001.011 111.101 

1 110.010 + 001.011 111.101 