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信息發(fā)布者：
?$\begin {aligned}&\frac {7}{6}=\frac {14}{12}，\frac {5}{4}=\frac {15}{12}\\&\frac {14}{12}<\frac {15}{12}，\frac {7}{6}<\frac {5}{4}\end {aligned}$?
?$\begin {aligned}&\frac {1}{2}=\frac {8}{16}，\frac {7}{16}=\frac {7}{16}\\&\frac {8}{16}>\frac {7}{16}，\frac {1}{2}>\frac {7}{16}\end {aligned}$?
?$\begin {aligned}&\frac {9}{4}=\frac {27}{12}，\frac {11}{3}=\frac {44}{12}\\&\frac {27}{12}<\frac {44}{12}，\frac {9}{4}<\frac {11}{3}\end {aligned}$?
?$\begin {aligned}&\frac {13}{14}=\frac {65}{70}，\frac {7}{10}=\frac {49}{70}\\&\frac {65}{70}>\frac {49}{70}，\frac {13}{14}>\frac {7}{10}\end {aligned}$?
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答：?$\frac {1}{4}$? > ?$\frac {1}{5}$?，乙跑得快。
答： ?$\frac {7}{4}$? > ?$\frac {8}{5}$?，甲的跳遠(yuǎn)成績好。
甲杯糖的含量：?$\frac {40}{40+60}$?=?$\frac {2}{5}$?
乙杯糖的含量：?$\frac {50}{50+70}$?=?$\frac {5}{12}$?
?$\frac {2}{5}$? < ?$\frac {5}{12}$?
答：乙杯甜。
答：往乙杯中加5克水。
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?$\frac {2022}{2023}$?比?$1$?少?$\frac {1}{2023}$?
?$\frac {2023}{2024}$?比1少 ?$\frac {1}{2024}$?
因為 ?$\frac {1}{2023}$? > ?$\frac {1}{2024}$?，
所以?$\frac {2022}{2023}$? < ?$\frac {2023}{2024}$?。
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