document.write( "Question 847497: 1/3 + 1/8 = \n" ); document.write( "
Algebra.Com's Answer #510482 by swincher4391(1107)\"\" \"About 
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I will do this two different ways.\r
\n" ); document.write( "\n" ); document.write( "The common way is to find a common denominator:\r
\n" ); document.write( "\n" ); document.write( "What is the common denominator for 3 and 8?\r
\n" ); document.write( "\n" ); document.write( "Look at the multiples of 3 and 8\r
\n" ); document.write( "\n" ); document.write( "3,6,9,12,15,18,21,24,27,30
\n" ); document.write( "8,16,24\r
\n" ); document.write( "\n" ); document.write( "We find that 24 is the first common multiple, so it must be it.\r
\n" ); document.write( "\n" ); document.write( "So, we convert each fraction into a denominator of 24.\r
\n" ); document.write( "\n" ); document.write( "\"1%2F3+=++%281%2A8%29%2F%283%2A8%29+=++8%2F24\"
\n" ); document.write( "\"1%2F8+=++%281%2A3%29%2F%288%2A3%29+=+3%2F24\"\r
\n" ); document.write( "\n" ); document.write( "So adding this together gives us 11/24.\r
\n" ); document.write( "\n" ); document.write( "METHOD 2(cross multiply)\r
\n" ); document.write( "\n" ); document.write( "1/3 + 1/8 \r
\n" ); document.write( "\n" ); document.write( "Start in the left corner and multiply by it with its diagonal\r
\n" ); document.write( "\n" ); document.write( "1*8 = 8\r
\n" ); document.write( "\n" ); document.write( "Take the other diagonal and multiply together\r
\n" ); document.write( "\n" ); document.write( "3*1 = 3\r
\n" ); document.write( "\n" ); document.write( "Add those two together to get our numerator.\r
\n" ); document.write( "\n" ); document.write( "8+3 = 11\r
\n" ); document.write( "\n" ); document.write( "Take the denominators and multiply them together \r
\n" ); document.write( "\n" ); document.write( "3*8 = 24\r
\n" ); document.write( "\n" ); document.write( "So our answer is (8+3)/24 = 11/24
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