Question 541528
How many halfs are in {{{20}}}?
There are {{{40}}} halfs in {{{20}}}
Adding another half gives me {{{ 41/2 }}}
 20 1/2 x 20 1/2 = {{{ (41/2)*(41/2) = 1681/4 }}}
{{{ 1681/4 }}} = 170 1/4