11/20-1/2
=11/20-10/20
=1/20
7/12+1/3
=7/12+4/12
=11/12
回答完毕~
有疑问请追问,我一定尽快回复你~
无疑问请点击【采纳】,同时预祝学习进步~(^o^)/~
我不是学霸,叫我赌神~(^o^)/~~(^o^)/~~(^o^)/~~(^o^)/~
11/20-1/2
=11/20-10/20
=1/20
7/12+1/3
=7/12+4/12
=11/12
回答完毕~
有疑问请追问,我一定尽快回复你~
无疑问请点击【采纳】,同时预祝学习进步~(^o^)/~
我不是学霸,叫我赌神~(^o^)/~~(^o^)/~~(^o^)/~~(^o^)/~