document.write( "Question 146345: Which of the following is not a rational number?\r
\n" ); document.write( "\n" ); document.write( "a. -4
\n" ); document.write( "b. 1/5
\n" ); document.write( "c. 0.833333333..........
\n" ); document.write( "d. 0.45
\n" ); document.write( "e. squareroot 2
\n" ); document.write( "

Algebra.Com's Answer #106855 by aswathytony(47)\"\" \"About 
You can put this solution on YOUR website!
square root of 2 is not a rational number.
\n" ); document.write( "A number which can be expressed in the form p/q, q not equal to 0 is called a rational number.
\n" ); document.write( "square root of 2 cannot expressed as a rational no:, its irrational number.
\n" ); document.write( "all other number given can be written in the form p/q.
\n" ); document.write( "
\n" );