您好很高兴为您解答原式＝0.1÷2/3÷3/4÷4/5=0.1×3/2×4/3×5/4=0.25
0.1÷(0.2÷0.3)÷(0.3÷0.4)÷(0.4÷0.5)=1/10 ÷2/3 ÷3/4 ÷4/5=1/10 x3/2 x4/3 x5/4=1/4
