Accepted Answer
There are an infinite number of them.Here are a few:2.12.22.32.30000000012.300000000000000062.52.00009..etc.How to find them:You probably never heard this before, but I'll bet you'll remember it from now on:ANY number that you can write down on paper completely, using digits and a decimal point if you need it but no symbols, is a rational number.If you can write it down completely without any 'comments', then it's rational.