用简便方法计算9⼀13-5⼀11+4⼀13-6⼀11,17⼀13-3⼀8-5⼀8请写过程

2025-03-22 14:30:33
推荐回答(3个)
回答1:

算9/13-5/11+4/13-6/11
=9/13+4/13-5/11-6/11
=1一1=0

,17/13-3/8-5/8
=17/13-(3/8+5/8)
=17/13-1
=4/13

回答2:


回答3: