Question 108565
{{{(180/2250)<(233/2330)}}} or {{{(180/2250)>(233/2330)}}} or {{{(180/2250)=(233/2330)}}}
You can do it two ways.
First simplify, then do LCD.
{{{18/225}}} and {{{1/10}}}
{{{10=2*5}}}
{{{225=3*3*5*5=3^2*5^2}}}
{{{LCD = 2^1*3^2*5^2}}}
{{{LCD = 2^1*3^2*5^2}}}
{{{LCD = 450}}}
{{{18/225=36/450}}} and {{{1/10=45/450}}}
You find that this year had the higher percentage or
{{{(180/2250)<(233/2330)}}}
You can also do it without simplification.
{{{2250=2*3*3*5*5*5=2*3^2*5^3}}}
{{{2330=2*5*233}}} 233 is a prime number. 
{{{LCD = 2^1*3^2*5^3*233}}}
{{{LCD = 524250}}}
{{{18/225=41940/524250}}} and {{{233/2330=52425/524250}}}
Again, you find that this year had the higher percentage or
{{{(41940/524250)<(52425/524250)}}}