document.write( "Question 49872: The book says the answer to my question is 7/40. But i dont see how they got that answer when the problem is : -1/5 + 3/8 . Wouldnt i have to multiply to get fourty on the bottom, and as far as i know this problem doesnt call for multiplication. Thanks for your help. \n" ); document.write( "
Algebra.Com's Answer #33123 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
-1/5 + 3/8\r
\n" ); document.write( "\n" ); document.write( "=-8/40 + 15/40
\n" ); document.write( "=7/40\r
\n" ); document.write( "\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "
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