数学计算题,1.(-48)÷│-6│2.(-32又9分之8)÷(-8)3.-1又4分之1÷0.125÷(-16)4.(-

3个回答

  • 1.

    (-48)÷│-6│

    =-48÷6

    =-8

    2.

    (-32又9分之8)÷(-8)

    =(32又9分之8)÷8

    =32÷8+9分之8÷8

    =4又1/9

    3.

    -1又4分之1÷0.125÷(-16)

    =1又4分之1÷0.125÷16

    =5/4×8×1/16

    =5/8

    4.

    (-7分之14)÷(-1又3分之2)×(-1又14分之1)

    =-2÷(1又3分之2)×(1又14分之1)

    =-2÷(3分之5)×(14分之15)

    =-2×3/5×15/14

    =-9/7

    =-1又7分之2

    5.

    3÷(-7分之6)×(-6分之7)

    =3÷(7分之6)×(6分之7)

    =3×7/6×7/6

    =49/12

    =4又12分之1

    6.

    (-1)÷(-4分之1)÷(-7分之4)

    =-1÷(4分之1)÷(7分之4)

    =-1×4×7/4

    =-7