Question 307183
{{{(11!10!)/(14!9!)=(11!10*9!)/(14*13*12*11!9!)=(cross(11!)*10*cross(9!))/(14*13*12*cross(11!)*cross(9!))=10/(14*13*12)=10/2184=5/1092}}}


So {{{(11!10!)/(14!9!)=5/1092}}}