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〖1/1算式〗
    作业：求算式 1.2*(75/1470)+1.4*(200/1470)+3.3*(150/1470)+0.6*(1270/650)+1*(1250/1470) 的值.
    题型：数学计算
    解:
          1.2*(75/1470)+1.4*(200/1470)+3.3*(150/1470)+0.6*(1270/650)+1*(1250/1470)
        =1.2*0.05102+1.4*(200/1470)+3.3*(150/1470)+0.6*(1270/650)+1*(1250/1470)
        =1.2*0.05102+1.4*0.136054+3.3*(150/1470)+0.6*(1270/650)+1*(1250/1470)
        =1.2*0.05102+1.4*0.136054+3.3*0.102041+0.6*(1270/650)+1*(1250/1470)
        =1.2*0.05102+1.4*0.136054+3.3*0.102041+0.6*1.953846+1*(1250/1470)
        =1.2*0.05102+1.4*0.136054+3.3*0.102041+0.6*1.953846+1*0.85034
        =0.061224+1.4*0.136054+3.3*0.102041+0.6*1.953846+1*0.85034
        =0.061224+0.190476+3.3*0.102041+0.6*1.953846+1*0.85034
        =0.061224+0.190476+0.336735+0.6*1.953846+1*0.85034
        =0.061224+0.190476+0.336735+1.172308+1*0.85034
        =0.061224+0.190476+0.336735+1.172308+0.85034
        =0.2517+0.336735+1.172308+0.85034
        =0.588435+1.172308+0.85034
        =1.760743+0.85034
        =2.611083
    答案:1.2*(75/1470)+1.4*(200/1470)+3.3*(150/1470)+0.6*(1270/650)+1*(1250/1470)=2.611083

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