五十七ᘧ࿾五十八分之五?

2024-12-21 20:18:15
推荐回答(1个)
回答1:

57×5/58

=57×5/58+5/58-5/58

=5/58×(57+1)-5/58

=5/58×58-5/58

=5-5/58

=4+1-5/58

=4+53/58

=4又53/58