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第73頁

信息發(fā)布者：
?$\frac {111}{1234}=\frac {666}{7404}$?
?$\frac {666}{7404}＞\frac {666}{7654}$?
?$\frac {111}{1234}＞\frac {666}{7654}$?
?$1-\frac {4443}{4445}=\frac {2}{4445}$?
?$1-\frac {5554}{5556}=\frac {2}{5556}$?
?$\frac {2}{4445}＞\frac {2}{5556}，$?則?$\frac {4443}{4445}＜\frac {5554}{5556}$?
?$\frac {223}{447}＜\frac 12，\frac {395}{788}＞\frac 12$?
?$\frac {223}{447}＜\frac {395}{788}$?
?$\frac {2346}{2345}=1+\frac {1}{2345}$?
?$\frac {2347}{2346}=1+\frac {1}{2346}$?
?$\frac {1}{2345}＞\frac {1}{2346}，$?則?$\frac {2346}{2345}＞\frac {2347}{2346}$?
?    $ 2020×2024$?
?$=2020×(2023+1)$?
?$=2020×2023+2020$?
?    $ 2023×2019$?
?$=2023×(2020-1)$?
?$=2023×2020-2023$?
?$2020×2024＞2023×2019$?
所以?$\frac {2020}{2023}＞\frac {2019}{2024}$?
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