Binary to decimal
Each place in base 2 is * 2 to a power (instead of * 10 to a power that we're used to for decimal)
e.g.
1 * 2^3 = 1*8 = 8
0 * 2^2 = 0*4 = 0
0 * 2^1 = 0*2 = 0
1 * 2^0 = 1*1 = 1
.
0 * 2^-1 = 0*1/2 = 0
1 * 2^-2 = 0*1/4 = 1/4 (or .25)
0 * 2^-3 = 0*1/8 = 0
-----------------------------
total up to = 9 1/4
e.g.
1 * 2^3 = 1*8 = 8
0 * 2^2 = 0*4 = 0
0 * 2^1 = 0*2 = 0
1 * 2^0 = 1*1 = 1
.
0 * 2^-1 = 0*1/2 = 0
1 * 2^-2 = 0*1/4 = 1/4 (or .25)
0 * 2^-3 = 0*1/8 = 0
-----------------------------
total up to = 9 1/4
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