总述：本次共解1题。其中
           ☆算术计算1题

〖1/1算式〗
    作业：求算式 1/3+3/4+2/5+5/7+7/8+9/20+10/21+11/24+19/35 的值.
    题型：数学计算
    解:
          1/3+3/4+2/5+5/7+7/8+9/20+10/21+11/24+19/35
        =0.333333+3/4+2/5+5/7+7/8+9/20+10/21+11/24+19/35
        =0.333333+0.75+2/5+5/7+7/8+9/20+10/21+11/24+19/35
        =0.333333+0.75+0.4+5/7+7/8+9/20+10/21+11/24+19/35
        =0.333333+0.75+0.4+0.714286+7/8+9/20+10/21+11/24+19/35
        =0.333333+0.75+0.4+0.714286+0.875+9/20+10/21+11/24+19/35
        =0.333333+0.75+0.4+0.714286+0.875+0.45+10/21+11/24+19/35
        =0.333333+0.75+0.4+0.714286+0.875+0.45+0.47619+11/24+19/35
        =0.333333+0.75+0.4+0.714286+0.875+0.45+0.47619+0.458333+19/35
        =0.333333+0.75+0.4+0.714286+0.875+0.45+0.47619+0.458333+0.542857
        =1.083333+0.4+0.714286+0.875+0.45+0.47619+0.458333+0.542857
        =1.483333+0.714286+0.875+0.45+0.47619+0.458333+0.542857
        =2.197619+0.875+0.45+0.47619+0.458333+0.542857
        =3.072619+0.45+0.47619+0.458333+0.542857
        =3.522619+0.47619+0.458333+0.542857
        =3.998809+0.458333+0.542857
        =4.457142+0.542857
        =4.999999
    答案:1/3+3/4+2/5+5/7+7/8+9/20+10/21+11/24+19/35=4.999999

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