-1/24除以(1/3-1/6+3/8)=-1/24÷（8/24-4/24+9/24）=-1/24÷13/24=-1/13第二种-1/24除以(1/3-1/6+3/8)=-1÷（24x1/3-24x1/6+24x3/8）=-1÷（8-4+9）=-1÷13=-1/13
-1/24除以(1/3-1/6+3/8)=-1/24÷（8/24-4/24+9/24）=-1/24*24/13=-1/13
