\
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=2ead16af4441b885db21b822a0d987ab.png\")
is rational, but ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=3ed186e63776d2ae10c7bacc4b140fca.png\")
is irrational.
\
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
A real number is sometimes a rational number.
\The real numbers consist of all rational and irrational numbers.
\ For example: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=2ead16af4441b885db21b822a0d987ab.png\")
is rational, but ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=3ed186e63776d2ae10c7bacc4b140fca.png\")
is irrational.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
A real number is sometimes a rational number.
\The real numbers consist of all rational and irrational numbers.
\ For example: is rational, but is irrational.