16-7又1/2-(-3又1/3)-11又5/6 有理数加减混合运算

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  • 16-7又1/2-(-3又1/3)-11又5/6 有理数加减混合运算

    =16-7+3-11-1/2+1/3-5/6

    =1-3/6+2/6-5/6

    =0;

    22.34+(-4.3)+(-12.34)-(-4.3)

    =22.34-4.3-12.34+4.3

    =10;

    1/4+(-2/3)+(-2又1/4)-(+1又1/3)

    =1/4-2/3-2-1/4-1-1/3

    =-2-1-1

    =-4;

    (-21.6)+3-7.4+(-2/5)

    =-21.6+3-7.4-0.4

    =-19-7.4

    =-26.4;

    10/3+(-11/4)-(-5/6)+(-7/12)

    =10/3-11/4+5/6-7/12

    =40/12-33/12+10/12-7/12

    =10/12

    =5/6;

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