5⼀11*34*1⼀10*2⼀51= 8⼀9*[3⼀4-[7⼀16-1⼀4]=

2024-12-04 17:56:58
推荐回答(1个)
回答1:

5/11×34×1/10×2/51
=(5/11×1/10)×(34×2/51)
=1/22×4/3
=2/33

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