11/12÷【(2/5+1/3)×3/4】如何简算?解析:11/12÷【(2/5+1/3)×3/4】=11/12÷【2/5×3/4+1/3×3/4】=11/12÷【6/10+1/4】=11/12÷17/20=55/51