[1-(5/3-1.5)÷5/12]×0.75等于多少?要有过程哦

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[1-(5/3-1.5)÷5/12]×0.75等于多少?要有过程哦
[1-(5/3-1.5)÷5/12]×0.75
等于多少?要有过程哦

[1-(5/3-1.5)÷5/12]×0.75等于多少?要有过程哦
[1-(5/3-1.5)÷5/12]×0.75
=[1-1/6÷5/12]×0.75
=[1-2/5]×0.75
=3/5×3/4
=9/20