51.6×5/6+5/6×29.1-80.7×1/6
问题描述：
51.6×5/6+5/6×29.1-80.7×1/6
答
我来回答 51.6×5/6+5/6×29.1-80.7×1/6 =5/6x(51.6+29.1)-80.7x1/6 =80.7x5/6-80.7x1/6 =80.7x(5/6-1/6) =80.7x2/3 =53.8
51.6×5/6+5/6×29.1-80.7×1/6
我来回答 51.6×5/6+5/6×29.1-80.7×1/6 =5/6x(51.6+29.1)-80.7x1/6 =80.7x5/6-80.7x1/6 =80.7x(5/6-1/6) =80.7x2/3 =53.8