比较999/9999和9999/99999的大小

比较999/9999和9999/99999的大小
比较999/9999和9999/99999的大小

比较999/9999和9999/99999的大小
999/9999=1-9000/9999=1-1000/1111=1-10000/11110
9999/99999=1-90000/99999=1-10000/11111
11110

999/9999＜9999/99999

999/9999<9999/99999

999/9999的倒数是9999/999＝9990/999＋9/999＝10＋9/999
9999/99999的倒数是99999/9999＝10＋9/9999
因为9/999>9/9999
所以9999/999>99999/9999
所以999/9999<9999/99999

比较9999/999与99999/9999，9999/999=1000+9/999，99999/9999=1000+9/9999.因为9/999大于9/9999，故9999/999大于99999/9999.所以999/9999小于9999/99999.

999/9999＜9999/99999