5⼀8X(2⼀5 8⼀15–4⼀25)怎么用计算方式?

2025-01-06 18:37:43
推荐回答(1个)
回答1:

5/8×(2/5+8/15-4/25)
=5/8×(30/75+24/75-12/75)
=5/8×42/75
=5/8×13/25
=13/40