\(\frac{37}{195}\)và\(\frac{73}{179}\)

Ta có 

\(\frac{37}{195}< \frac{37}{179}< \frac{73}{179}\)

\(\Rightarrow\)\(\frac{37}{195}< \frac{73}{179}\)

Vậy \(\frac{37}{195}< \frac{73}{179}\)

Vì 37/195<37/179<73/179

=>37/195<73/179

Ta có:

\(\frac{22}{49}>\frac{3}{7}\)

Mà \(\frac{3}{7}>\frac{3}{8}\)

=>\(\frac{22}{49}>\frac{3}{8}\)

Cái này có Phân số trung gian là:\(\frac{21}{49}=\frac{3}{7}\)

Vì \(\dfrac{25}{67}< \dfrac{25}{89}:\dfrac{25}{89}< \dfrac{35}{89}=>\dfrac{25}{67}< \dfrac{35}{89}\)

2567<2589:2589<3589=>2567<3589

\(\frac{2}{7}\)\(< \)\(\frac{4}{9}\)

2/7<4/9

\(\frac{2}{7}< \frac{4}{9}\)

Tk mk mk tk lại ! ^^ 

Ta co:

\(\frac{58}{89}< \frac{58}{87}=\frac{2}{3}=\frac{36}{54}< \frac{36}{53}\)

Hay :\(\frac{58}{89}< \frac{36}{53}hay\frac{36}{53}>\frac{58}{89}\)
 

Ko so sánh bằng cách này đc đâu

Ta có : 

\(\frac{19}{60}< \frac{20}{60}=\frac{1}{3}\)

\(\frac{31}{90}>\frac{30}{90}=\frac{1}{3}\)

=> \(\frac{31}{90}>\frac{1}{3}>\frac{19}{60}\Rightarrow\frac{31}{90}>\frac{19}{60}\)

a)  311 256 > 1 > 199 203

b)  30 235 = 6 47 > 6 48 = 8 64 > 8 63 = 168 1323