简算:(递等式)0.75×(5/12-0.15)÷1又1/8

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简算:(递等式)0.75×(5/12-0.15)÷1又1/8
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简算:(递等式)0.75×(5/12-0.15)÷1又1/8
简算:(递等式)
0.75×(5/12-0.15)÷1又1/8

简算:(递等式)0.75×(5/12-0.15)÷1又1/8
0.75×(5/12-0.15)÷1又1/8
=3/4×(5/12-3/20)÷9/8
=3/4×5/12×8/9-3/4×3/20×8/9
=5/18-1/10
=25/90-9/90
=16/90
=8/45