=(6×7×8×9)÷(3×4×5×6)=8.4
6×7×8×9/3×4×5×6=42/5
(6*7*8*9)/(3*4*5*6)=3024/360=8.4
=(4×5×6×7×8×9)÷(3×4×5×6)=60480÷360=1008
8.4
(6*4)/(3*4)=(6*7*8*9)/(3*4*5)=50.4