一道分数乘除法的简便计算题：1997÷(1997+1997/1998)+(1/1999) ，这道题应该怎么计算？得数是多少？

数学题解答：你这样写算式，不容易看明白，你看是不是下图这样的算式？

就是这样的，怎么简便计算呢？

请看下面的过程，我省了一步，但写出了得数，你自己想一下。

其实省掉的一步是这样的：1998/1999 + 1/1999=1

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