Ta có: \(\frac85=1+\frac35;\frac{11}{8}=1+\frac38;\frac{16}{13}=\frac{13+3}{13}=1+\frac{3}{13}\)

\(\frac{14}{11}=\frac{11+3}{11}=1+\frac{3}{11};\frac{21}{18}=\frac{18+3}{18}=1+\frac{3}{18}\)

\(\frac52=\frac{2+3}{2}=1+\frac32\)

Ta có: 18>13>11>8>5>2

=>\(\frac{3}{18}<\frac{3}{13}<\frac{3}{11}<\frac38<\frac35<\frac32\)

=>\(\frac{3}{18}+1<\frac{3}{13}+1<\frac{3}{11}+1<\frac38+1<\frac35+1<\frac32+1\)

=>\(\frac{21}{18}<\frac{16}{13}<\frac{14}{11}<\frac{11}{8}<\frac85<\frac52\)

a: -10/8<-1

-19/19=-1

-1<-2/10<0

0<5/12<1<17/15

=>17/15>1>5/12>-2/10>-19/19>-10/8

b: -1/3=-4/12; -5/12=-5/12; -3/4=-9/12; -1/4=-3/12; -7/12=-7/12

=>-3/4<-7/12<-5/12<-1/3<-1/4

Theo thứ tự từ lớn đến bé:\(\dfrac{17}{15};1;\dfrac{5}{12};0;\dfrac{2}{-10};-\dfrac{19}{19};-\dfrac{10}{8}\)

Theo thứ tự từ bé đến lớn : \(-\dfrac{3}{4};-\dfrac{7}{12};-\dfrac{5}{12};-\dfrac{1}{3};\dfrac{1}{-4}\)

\(\dfrac{1}{3}< \dfrac{3}{5}< \dfrac{7}{9}< \dfrac{9}{11}< \dfrac{11}{13}\)

tk1/3; 3/5; 7/9; 9/11; 11/13

a) Theo thứ tự từ bé đến lớn: 38, 41, 59, 70.

b) Theo thứ tự từ lớn đến bé: 70, 59, 41, 38.

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21/25

19/29

60/81

\(\frac{4}{5}< \frac{5}{6}< \frac{7}{8}< \frac{6}{5}\)

\(\frac{4}{5};\frac{5}{6};\frac{7}{8};\frac{6}{5}\)

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c#ẹp.c#ẹp.típ.k.

12/14 > 13/14 > 15/15 > 19/18 > 20/18

a)\(\dfrac{8}{15}< \dfrac{11}{15}< \dfrac{15}{15}< \dfrac{16}{15}< \dfrac{17}{15}< \dfrac{19}{15}\)

b)\(\dfrac{19}{42}< \dfrac{19}{35}< \dfrac{19}{21}< \dfrac{19}{19}< \dfrac{19}{17}\)

c)\(\dfrac{8}{10}< \dfrac{6}{7}< \dfrac{27}{25}< \dfrac{16}{14}\)

a) 8/15 ;  11/15 ; 15/15 ; 16/15 ; 17/15 ; 19/15

b) 19/42 19/35 ; 19/21 ; 19/19 ; 19/17

c) 8/10 ; 6/7 ; 27/25 ; 16/14