初中的数学题吧.
无聊做着玩-0-
(-1)*1/3=(-1)^2-(1/3)^2-((-1)^3-3))/(-1-1/3)
=1-1/9-(-6)/(-4/3)
=1-1/9-9/2
=18/18-2/18-81/18
=65/18