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13/18乘以5.16加516%乘以5/18

18分之13×5.16+516%×18分之5 解:原式=18分之13×5.16+5.16×18分之5 =(18分之13+18分之5)×5.16 =1×5.16 =5.16

原式 =5.16x13/18+5.16x5/18 =5.16x(13/18+5/18) =5.16x1 =5.16

(18分之13乘以5.16加百分之516乘18分之5)除以5又25分之4 =(18分之13乘以5.16+0.516乘18分之5)除以5又25分之4 =(18分之13+18分之5)*0.516÷5.16 =0.516÷5.16 =0.1

题目应该是(13/18)*5.16+516%*(5/18 )吧 =5.16*(13/18+5/18) =5.16

(13/18x5.16+516%x5/18)÷5又4/25 =(13/18x5.16+5.16x5/18)÷5.16 =(13/18+5/18)x5.16÷5.16 =1x1 =1

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