九分之二乘八分之三加0.375+九分之七乘百分之37.5

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九分之二乘八分之三加0.375+九分之七乘百分之37.5
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九分之二乘八分之三加0.375+九分之七乘百分之37.5
九分之二乘八分之三加0.375+九分之七乘百分之37.5

九分之二乘八分之三加0.375+九分之七乘百分之37.5
(2/9.)×(3/8)+ 0.375 +(7/9)×(37.5%)
=(2/9)×0.375 + 0.375 + (7/9)×0.375
=0.375×[(2/9)+ 1 +(7/9)]
=0.375×2
=0.75

32%×9/7-8/25×3/16 =0.32×9/7-0.32×3/16 =0.32×(9/7-3/16) =8/25×123/112 =123/350 按照运算法则 先乘除后加减,先算32

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