document.write( "Question 900429: What is 3/10 + 2/5 - 1/4 =?
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Algebra.Com's Answer #545962 by JulietG(1812)\"\" \"About 
You can put this solution on YOUR website!
The easiest way is to find a common denominator. All of the denominators (10,5,4) go into 20. Let's convert everything to 20ths.
\n" ); document.write( "\"3%2F10\"=\"6%2F20\"
\n" ); document.write( "\"2%2F5\"=\"8%2F20\"
\n" ); document.write( "\"1%2F4\"=\"5%2F20\"
\n" ); document.write( "Now the equation becomes
\n" ); document.write( "\"6%2F20\"+\"8%2F20\"-\"5%2F20\"
\n" ); document.write( "\"14%2F20\"-\"5%2F20\"=\"9%2F20\"
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