72⼀[(5⼀7-0.5)*7⼀15+17⼀10]

72/[(5/7-0.5)*7/15+17/10]算式
2025-02-26 00:48:34
推荐回答(1个)
回答1:

=72/(5/7*7/15-1/2*7/15+17/10)
=72/(1/3-7/30+17/10)
=72/(10/30-7/30+51/30)
=72/(9/5)
=72*5/9
=40