document.write( "Question 108186: Points A, B, C, and D are arranged in order on a line so that AB = 3BC and BC = 2CD. What fraction of AD is BD? \n" ); document.write( "
Algebra.Com's Answer #78838 by edjones(8007)\"\" \"About 
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Let CD=1
\n" ); document.write( "Then BC=2 and AB=6
\n" ); document.write( "AD=9 and BD=3
\n" ); document.write( "So BD/AD=3/9=1/3
\n" ); document.write( "Ed
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