11⼀8霧【9⼀10(2⼀5+1⼀4)】怎样简算?

2025-05-15 14:59:02
推荐回答(1个)
回答1:

=11/8÷[9/10*(8/20+5/20)]
=11/8÷(9/10*13/20)
=11/8*10/9*20/13
=275/117