document.write( "Question 1101991: 9C3/12C3 \n" ); document.write( "

Algebra.Com's Answer #716669 by Alan3354(69443) $\"\"$ $\"About$

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9C3/12C3
\n" ); document.write( "= (9!/6!*3!)/(12!/9!*3!)
\n" ); document.write( "= (9!/6!*3!)*(9!*3!/12!)
\n" ); document.write( "= (9!/6!)*(9!/12!)
\n" ); document.write( "= 9*8*7/(12*11*10)
\n" ); document.write( "= 3*7/(5*11)
\n" ); document.write( "= 21/55
\n" ); document.write( " \n" ); document.write( "

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