Translation from Binary to Decimal

Question

How does one translate the following binary to Decimal. And yes the decimal points are with the whole binary value

1) 101.011
b) .111

Answer 1

1) 101.011

= 2*2^-3 + 1*2^-2 + 0*2^-1 + 1*2^0 + 0*2^1 + 1*2^2

= (1/8) + (1/4) + 0 + 1 + 0 + 4

= 5.375

2) .111

= 1*2^-3 + 1*2^-2 + 1*2^-1

= (1/8) + (1/4) + (1/2)

= .875