11/27+(5/8+2/27)×8
=11/27+5/8*8+2/27*8
=11/27+16/27+5
=1+5
=6
8/9-(1/6+1/4)÷9/4
=8/9-1/4÷9/4-1/6÷9/4
=8/9-1/9-2/27
=7/9-2/27
=21/27-2/27
=19/27
59.9954,保留一位小数是(59.0)
保留两位小数是(59.00)
11/27+(5/8+2/27)×8
=11/27+5/8*8+2/27*8
=11/27+16/27+5
=1+5
=6
8/9-(1/6+1/4)÷9/4
=8/9-1/4÷9/4-1/6÷9/4
=8/9-1/9-2/27
=7/9-2/27
=21/27-2/27
=19/27
59.9954,保留一位小数是(59.0)
保留两位小数是(59.00)