9999*4444/(3333*2222)= (9999/3333) * (4444/2222)= 3*2= 6
9999*4444/(3333*2222)=9999/1111*4444/1111/(3333/1111*2222/1111)=9*4/(3*2)=36/6=6
9999*4444/(3333*2222)=9*4*1111*1111/(3*2*1111*1111)=3*2=6
