8⼀9x[3⼀4一(7⼀16一1⼀4)]怎么简便计算

2024-11-29 02:36:56
推荐回答(3个)
回答1:


回答2:

8/9×[3/4-(7/16-1/4)]
=8/9×[3/4-7/16+1/4]
=8/9×[1-7/16]
=8/9×1-8/9×7/16
=8/9-7/18
=16/18-7/18
=1/2

回答3:

=8/9x[3/4-11/16]
=8/9x1/16
=8/9