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## Homework Statement

I don't know how to convert the number 148.3 to binary form.

## Homework Equations

Just having a decimal point really throws in a monkey wrench in the "keep dividing by and if a number halfed has a decimal point ignore the after decimal point stuff two" procedure.

## The Attempt at a Solution

I got the answer 101010001 but I looked the answer up and it's apparently 10010100.How can this be?.I was desperate enough to just look up the answers but I still don't how 200.45 can be 11001000,100.9 can be 1100100 and 9001.375 can be 10001100101001

If it helps me teacher wrote a note that looks like this ...

{want to convert to 0.7 decimal to binary -->

*multiply by 2 and list surplus (0,1) 0.7 decimal=0.1011001100

½,¼,1/8,1/16, 1/128,1/256

surplus 0.7*2

______________

I 1 I .

**4***2

I 0 I .

**8***2

V 1 I .

**6***2

read down 1 I .

**2***2

0 I .4*2

0 I .8*2

1 I .6*2 }