các tại hạ cíu tui zớiiiiiiiiiiiiiiiiiiiiiiiii tui sắp phải đi thỉnh kinh òiiii

các tại hạ cíu tui zớiiiiiiiiiiiiiiiiiiiii sắp phải đi thỉnh kinh òi huhuhuhuhu

a) \(\dfrac{7}{11}=1-\dfrac{4}{11}=1-\dfrac{8}{22}\)

    \(\dfrac{17}{23}=1-\dfrac{6}{23}\)

Vì \(\dfrac{8}{22}\) > \(\dfrac{6}{23}\) ⇒\(\dfrac{7}{11}>\dfrac{17}{23}\)

b) \(\dfrac{12}{48}\) = \(\dfrac{1}{4}\) = \(\dfrac{13}{52}\) < \(\dfrac{13}{27}\) 

Vì \(\dfrac{13}{52}< \dfrac{13}{27}\) ⇒ \(\dfrac{12}{48}< \dfrac{13}{27}\)  

          Bài làm :

Ta có :

Vì 4/59 < 4/53

\(\Rightarrow\frac{63}{59}< \frac{57}{53}\)

Vậy 63/59 < 57/53

63/59 = 1 + 4/59 

57/53 = 1 + 4/53 

Vì 4/57 < 4/53

Vậy 63/59 < 57/53 

Ta có

\(\frac{63}{59}>1;\frac{57}{53}>1\Rightarrow\frac{57}{53}>\frac{57+6}{53+6}=\frac{63}{59}\)

Hok Tốt !!!!!!!!!!!

a. \(\dfrac{10}{21}>1\)

\(\dfrac{9}{23}< 1\)

\(\Rightarrow\dfrac{10}{21}>\dfrac{9}{23}\)

b. \(\dfrac{32}{33}>\dfrac{31}{33}>\dfrac{31}{34}\Rightarrow\dfrac{32}{33}>\dfrac{31}{34}\)

c. \(\dfrac{44}{47}< \dfrac{45}{47}< \dfrac{45}{46}\Rightarrow\dfrac{44}{47}< \dfrac{45}{46}\)

\(d.\dfrac{70}{117}< \dfrac{70}{115}=\dfrac{14}{23}\Rightarrow\dfrac{70}{117}< \dfrac{14}{23}< \dfrac{15}{23}\)

\(\Rightarrow\dfrac{70}{117}< \dfrac{15}{23}\)

\(\frac{23}{3}>\frac{15}{2}\)

\(\frac{14}{7}>\frac{2}{9}\)

\(\frac{12}{13}< \frac{13}{14}\)

\(\frac{17}{16}< \frac{16}{15}\)

\(\frac{8}{6}>\frac{42}{43}\)

b, \(\dfrac{7}{13}\) và \(\dfrac{17}{23}\) 

\(\dfrac{7}{13}\) <  \(\dfrac{7+10}{13+10}\) = \(\dfrac{17}{23}\)

Vậy \(\dfrac{7}{13}\) < \(\dfrac{17}{23}\) 

\(\dfrac{12}{48}\) =  \(\dfrac{12:12}{48:12}\)  = \(\dfrac{1}{4}\) 

\(\dfrac{13}{47}\) > \(\dfrac{13}{52}\) = \(\dfrac{13:13}{52:13}\) = \(\dfrac{1}{4}\) 

Vậy  \(\dfrac{12}{48}\) < \(\dfrac{13}{47}\) 

Ai trả lời đc mình sẽ 👍 nha

\(a.\)

\(\dfrac{9}{7}=\dfrac{7+2}{7}=1+\dfrac{2}{7}\)

\(\dfrac{11}{13}=\dfrac{13-2}{13}=1-\dfrac{2}{13}\)

Ta có : \(\dfrac{2}{7}>\dfrac{-2}{13}\)

\(\Rightarrow\dfrac{9}{7}>\dfrac{11}{13}\)