Question

1/2÷[(-0.5)³－(-1.5)²]＋1又1/2÷3/4×(-2)

Answer 1

1/2÷[(-0.5)³－(-1.5)²]＋1又1/2÷3/4×(-2)
=1/2÷(-0.125-2.25)+3/2×4/3×(-2)
=1/2÷(-17/8)+1/2×(-2)
=-4/17-1
=-21/17

不懂可追问，有帮助请采纳，谢谢！

追问

3/2÷3/4=3/2×4/3=2不是吗

追答

1/2÷[(-0.5)³－(-1.5)²]＋1又1/2÷3/4×(-2)
=1/2÷(-0.125-2.25)+3/2×4/3×(-2)
=1/2÷(-17/8)+2×(-2)
=-4/17-4
=-4又4/17

追问

（-0.125－2.25）＝-2.375=-2又3/8对吗

Answer 2

(1/2)/[(-0.5)^3-(-1.5)^2]+1又2分之1 /(3/4)*(-2)
=(1/2)/[(-1/8)-(9/4)]-3/2 *4/3 *2
=(1/2)/[(-1-18)/8]-4
=-(1/2)*(8/19)-4
=-4/19-4
=-4又19分之4