Question 990413
5/16 related to 0.45;


{{{5/16=5/(2*2*2*2)}}}
and 
{{{0.45=45/100=5*3*3/(2*2*5*5)=9/(2*2*5)}}}.


Denominator needs four of 2's.and two 5's.


{{{5/16=(5/16)(5/5)=25/d}}}

and 

{{{(9/(2*2*5))((2*2)/(2*2))=36/d}}}


You do not to actually know the denominator d=60.
The fractional parts of the given numbers can easily be compared.
{{{5/16<0.45}}}