document.write( "Question 808210: if a/b=3 and b/c=7. then what is the ratio of a-b/b-c.\r
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\n" ); document.write( "\n" ); document.write( "I started to do guess and check and I think I solved it but want to make sure.
\n" ); document.write( "A=210
\n" ); document.write( "B=70
\n" ); document.write( "C=10
\n" ); document.write( "Ratio 7:3
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Algebra.Com's Answer #486883 by JBarnum(2146)\"\" \"About 
You can put this solution on YOUR website!
\"a%2Fb=3\"\"b%2Fc=7\"\"b=7c\"\"b=a%2F3\"\"a%2F3=7c\"\"a=28c\"
\n" ); document.write( "\"%2828c-7c%29%2F%287c-c%29=21c%2F6c\" = \"21%2F6\"= \"highlight_green%287%2F3%29\"
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