设绳子长为X
列方程式 (1-1/3)X=15/16
X=45/32
答:这条绳子原来有45/32米
一条绳子,用去1/3,还剩15/16米,这条绳子原来有多长?
一条绳子,用去1/3,还剩15/16米,这条绳子原来有多长?
数学人气:354 ℃时间:2020-03-29 01:51:15
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