Golfed decimal fractions
Perl, 77 bytes



#!perl -p
$%++while/ /&lt;grep{!index$_/$',$\=$`/$'.($`%$'?0:n).0 x$%&amp;'?'x$%}$`-2..$`+2}{


Counting the shebang as one, input is taken from stdin.

Sample Usage

$ echo 0 3 | perl golf-decimals.pl
0.0

$ echo 4 3 | perl golf-decimals.pl
1.3

$ echo 11 8 | perl golf-decimals.pl
1.3

$ echo -496 -38 | perl golf-decimals.pl
13.05

$ echo 458 -73 | perl golf-decimals.pl
-6.27

$ echo -44 891 | perl golf-decimals.pl
-0.049