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Fraction and Decimal Interactions：
Function: it can convert the entered fraction into a decimal, or convert the entered decimal into a fraction.
The fraction line of the entered fraction is indicated by "/".
When you enter an infinite loop decimal, the loop section of the infinite loop follows "|".
Function: it can convert the entered fraction into a decimal, or convert the entered decimal into a fraction.
The fraction line of the entered fraction is indicated by "/".
When you enter an infinite loop decimal, the loop section of the infinite loop follows "|".
Current location：Mathematical operation > History of fractional decimal interaction > Answer
Bad input!Please check agin.
以下题目输入有误或有空行，请仔细检查，改正后再计算：
1==>错误类型：输入错误(3): 5X二40
==>指导建议：
解多元方程，可以点击解多元方程
或者仔细阅读下面的“数学函数”和“使用须知”栏目。
若问题没有得到解决，请参阅：《热点问题》