(-43/9)-(-19/6)-(+20/9)+(-37/6)
问题描述：
(-43/9)-(-19/6)-(+20/9)+(-37/6)
答
(-43/9)-(-19/6)-(+20/9)+(-37/6)
=-43/9-20/9+19/6-37/6
=-63/9-18/6
=-7-3
=-10