to 1 co 4 phan chuyen ,1 phan sang to 2 con 3 phan ,to 2 luc to 1 chuyen sang 1/4 cung 3 phan luon
khi hai to bang nhau hai to co so cong nhan la : 48:6x3=24
vay to 1 luc dau la : 24:3x4=32[cong nhan ]
to 2 luc dau la : 24:3x2=16[cong nhan ]
dap so : to 1:32 cong nhan
2 : 16 cong nhan