3.6×0.75×1.2÷(1.5×24×0.18)
=3.6×0.75×1.2÷(1.5×2.4×1.8) (注:3.6÷1.8=2,1.2÷2.4=1÷2=2分之1,0.75÷1.5=1÷2=2分之1)
=2÷(2×2)
=2分之1不懂=3.6×0.75×1.2÷(1.5×2.4×1.8)=(3.6÷1.8)×(0.75÷1.5)×(1.2÷2.4) =2×(2分之1)×(2分之1) =2分之1能不能把二分之一换成小数=(3.6÷1.8)×(0.75÷1.5)×(1.2÷2.4) =2×0.5×0.5 =0.5