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13.85减5分之17加50分之3减5分之3等于多少
人气:393 ℃ 时间:2019-10-11 00:45:53
解答
13.85-17/5+3/50-3/5
=13+85/100-3-2/5+3/50-3/5
=13-3+85/100-2/5-3/5+3/50
=10-1+85/100+6/100
=9+91/100
=9(91/100)
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