(-4/7)x5x(-1又3/4)

来源：百度知道 编辑：UC知道 时间：2024/05/17 04:49:16
(-2又1/3)x(-17)-(-23)x2又1/3+49x(-2又1/3)

(-1/6-1/36+3/4-1/12)x(-48)

-5又3/13x(-26)

(x为乘号)

(-4/7)x5x(-1又3/4)
=(-4/7)x5x(-7/4)
=[(-4/7)x(-7/4)]x5
=1x5
=5

(-2又1/3)x(-17)-(-23)x2又1/3+49x(-2又1/3)
=(-7/3)x(-17)-(-23)x(7/3)+49x(-7/3)
=(-7/3)x(-17-23+49)
=(-7/3)x9
=-21

(-1/6-1/36+3/4-1/12)x(-48)
=(-1/6)x(-48)-1/36x(-48)+3/4x(-48)-1/12x(-48)
=8+4/3-36+4
=-24+4/3
=-(24-4/3)
=-(22+2/3)
=-22又3分之2

-5又3/13x(-26)
=(-68/13)x(-26)
=68x2
=136