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〖1/1算式〗
    作业：求算式 0.7811*1.12184/(1.12184-0.8)+0.2105/(1-0.8)+0.0084*0.54176/(0.54176-0.8) 的值.
    题型：数学计算
    解:
          0.7811*1.12184/(1.12184-0.8)+0.2105/(1-0.8)+0.0084*0.54176/(0.54176-0.8)
        =0.7811*1.12184/0.32184+0.2105/(1-0.8)+0.0084*0.54176/(0.54176-0.8)
        =0.7811*1.12184/0.32184+0.2105/0.2+0.0084*0.54176/(0.54176-0.8)
        =0.7811*1.12184/0.32184+0.2105/0.2+0.0084*0.54176/(-0.25824)
        =0.876269/0.32184+0.2105/0.2+0.0084*0.54176/(-0.25824)
        =2.722685+0.2105/0.2+0.0084*0.54176/(-0.25824)
        =2.722685+1.0525+0.0084*0.54176/(-0.25824)
        =2.722685+1.0525+0.004551/(-0.25824)
        =2.722685+1.0525+(-0.017623)
        =3.775185+(-0.017623)
        =3.757562
    答案:0.7811*1.12184/(1.12184-0.8)+0.2105/(1-0.8)+0.0084*0.54176/(0.54176-0.8)=3.757562

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