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a)15/8:9/8/7/8;3/8
b)3/5;7/15;4/15;8/45
c)9/4;47/10;4/5;3/8
a) \(\frac{3}{8},\frac{15}{8},\frac{9}{8},\frac{7}{8}\)
Từ lớn -> bé:
=>\(\frac{15}{8},\frac{9}{8},\frac{7}{8},\frac{3}{8}\)
b) \(\frac{4}{15},\frac{3}{5},\frac{8}{45},\frac{7}{15}=\frac{12}{45},\frac{27}{45},\frac{8}{45},\frac{21}{45}\)
Từ lớn -> bé:
=> \(\frac{3}{5},\frac{7}{15},\frac{4}{15},\frac{8}{45}\)
c) \(\frac{3}{8},\frac{4}{5},\frac{47}{40},\frac{9}{4}=\frac{15}{40},\frac{32}{40},\frac{47}{40},\frac{90}{40}\)
Từ lớn -> bé:
=>\(\frac{9}{4},\frac{47}{40},\frac{4}{5},\frac{3}{8}\)
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
a) 1/2
b) 18/17; 17/16; 16/15; 15/14; 14/13; 13/12; 10/9
Nhớ k cho mk nha
a)1/2
b)Vì 18/17 <17/16 <16/15<15/14< 14/13< 13/12< 10/9
Nên, ta có:
18/17; 17/16; 16/15; 15/14; 14/13; 13/12; 10/9.
Ta có: \(\dfrac{5}{19}\)< \(\dfrac{7}{19}\)< \(\dfrac{15}{19}\) <\(\dfrac{17}{19}\)
a) Các phân số sắp xếp theo thứ tự từ bé đến lớn: \(\dfrac{5}{19}\); \(\dfrac{7}{19}\); \(\dfrac{15}{19}\); \(\dfrac{17}{19}\)
b) Các phân số sắp xếp theo thứ tự từ lớn đến bé: \(\dfrac{17}{19}\); \(\dfrac{15}{19}\); \(\dfrac{7}{19}\); \(\dfrac{5}{19}\)
\(\dfrac{2}{3}< \dfrac{4}{5}< \dfrac{5}{6}< \dfrac{9}{10}< \dfrac{14}{15}\)
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
a,Sắp xếp: \(\dfrac{8}{45};\dfrac{4}{15};\dfrac{7}{15};\dfrac{3}{5}\)
b,Sắp xếp:\(\dfrac{3}{8};\dfrac{4}{5};\dfrac{47}{40};\dfrac{9}{4}\)
a: \(\dfrac{4}{15}=\dfrac{12}{45}\)
\(\dfrac{3}{5}=\dfrac{27}{45}\)
\(\dfrac{8}{45}=\dfrac{8}{45}\)
\(\dfrac{7}{15}=\dfrac{21}{45}\)
Do đó: \(\dfrac{8}{45}< \dfrac{4}{15}< \dfrac{7}{15}< \dfrac{3}{5}\)