formatting of currency values in kmmsplits table

[Chris]

I was going through the database tables when a file was stored as sqlcipher.

I came across something I haven't seen before and I was wondering why it was 
that way

Transaction values are stored as text strings but with unusual divisors.

For example the value 18.95 may be stored as "1895/100" which is 1895 
divided by 100 = 18.95. All and good

but there are other ones which confuse me as to why its done this way.

Examples are ...

unformatted => formatted
258/25     =>      10.32
124/25     =>     4.96
-273/50    =>      -5.46
1/2            =>     0.5

Can some one explain why it is done that way?

Chris