8⼀9×[3⼀4-(7⼀16-1⼀4)]

2024-11-29 03:23:22
推荐回答(2个)
回答1:


red

回答2:

8/9×[3/4-(7/16-1/4)]
=8/9×[3/4+1/4-7/16]
=8/9x(1-7/16)
=8/9x9/16
=1/2