(-4 7/9)-(-3 1/6)-(+2 2/9)+(-6 1/6)省略括号的代数和,并算出计算结果
问题描述：
(-4 7/9)-(-3 1/6)-(+2 2/9)+(-6 1/6)省略括号的代数和,并算出计算结果
答
(-4 7/9)-(-3 1/6)-(+2 2/9)+(-6 1/6)
=-4 7/9+3 1/6-2 2/9-6 1/6
=（-4 7/9-2 2/9)+(3 1/6-6 1/6)
=-7-3
=-10