(1/2-2/3+5/4-5/6-3/8)×(-24)

问题描述:

(1/2-2/3+5/4-5/6-3/8)×(-24)
0.5-(2/3-5/4)×0.6÷(-0.75)

(1/2-2/3+5/4-5/6-3/8)×(-24)
=1/2*(-24)-2/3*(-24)+5/4*(-24)-5/6*(-24)-3/8*(-24)
=(-12)+2*8-5*6+5*4+3*3
=-12+16-30+20+9
=3