=-27-3/4*(-4/9-8)+1/8
=-27-3/4*(-76/9)+1/8
=-27+57/9+1/8
=-20又13/24
解:-3^3-3/4*[(-2/3)^2-2^3]-(-1/2)^3
=-27-3/4*[4/9-8]+1/8
=-27-3/4*(-68/9)+1/8
=-27+17/3+1/8
=-648/24+133/24
=-21又11/24
或-515/24
(-3的三次方)-4分之3*[(-3分之2的二次方)-2的三次方]-(-2分之1的三次方)
=-27-3/4*[(-4/9)-8]+1/8
=-27+1/3+6+1/8
=-21+11/24
=-20又13/24