-3/4x(-2/3) -8/5除以(-0.4)

问题描述:

-3/4x(-2/3) -8/5除以(-0.4)

1/2+4=9/2

(-3/4)*(-2/3)=1/2
-8/5/(-0.4)=-1.6/-0.4=4
记得采纳哟亲