2⼀13×7⼀5+2⼀5×6⼀13等于多少?

2024-11-29 12:03:45
推荐回答(1个)
回答1:

2/13*7/5+2/5*6/13
=(2*7)/(13*5)+(2*6)/(5*13)
=(14+12)/(5*13)
=26/65