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![](https://rs.olm.vn/images/avt/0.png?1311)
a, Vì \(7,925< 9,725< 9,75< 9,752\).
Sắp xếp theo thứ tự từ bé đến lớn: \(7,925;9,725;9,75;9,752\).
b, Vì \(86,077< 86,707< 86,77< 87,67\).
Sắp xếp theo thứ tự từ bé đến lớn: \(86,077;86,707;86,77;87,67\).
c, Ta có: \(\dfrac{3}{2}=\dfrac{3\times10}{2\times10}=\dfrac{30}{20}\)
\(2=\dfrac{40}{20}\)
\(\dfrac{5}{4}=\dfrac{5\times5}{4\times5}=\dfrac{25}{20}\)
\(\dfrac{9}{4}=\dfrac{9\times5}{4\times5}=\dfrac{45}{20}\)
\(2,2=\dfrac{11}{5}=\dfrac{11\times4}{5\times4}=\dfrac{44}{20}\)
Vì \(\dfrac{25}{20}< \dfrac{30}{20}< \dfrac{40}{20}< \dfrac{44}{20}< \dfrac{45}{20}\).
nên \(\dfrac{5}{4}< \dfrac{3}{2}< 2< 2,2< \dfrac{9}{4}\).
Sắp xếp theo thứ tự từ bé đến lớn: \(\dfrac{5}{4};\dfrac{3}{2};2;2,2;\dfrac{9}{4}\).
![](https://rs.olm.vn/images/avt/0.png?1311)
TL:
a) \(\dfrac{5}{6}\);\(\dfrac{9}{8}\);\(\dfrac{17}{18}\)
b) \(\dfrac{1}{2}\);\(\dfrac{5}{8}\);\(\dfrac{3}{4}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\frac{3}{2};\frac{4}{3};\frac{5}{4};\frac{6}{5};\frac{7}{6};\frac{8}{7};\frac{9}{8}\)
\(1\frac{1}{2};1\frac{1}{3};1\frac{1}{4};1\frac{1}{5};1\frac{1}{6};1\frac{1}{7};1\frac{1}{8}\)\(\frac{3}{2};\frac{4}{3};\frac{5}{4};\frac{6}{5};\frac{7}{6};\frac{8}{7};\frac{9}{8}\)
Vì \(\frac{1}{2}>\frac{1}{3}>\frac{1}{4}>\frac{1}{5}>\frac{1}{6}>\frac{1}{7}>\frac{1}{8}\)
=> \(1\frac{1}{2}>1\frac{1}{3}>1\frac{1}{4}>1\frac{1}{5}>1\frac{1}{6}>1\frac{1}{7}>1\frac{1}{8}\)
Hay \(\frac{3}{2}>\frac{4}{3}>\frac{5}{4}>\frac{6}{5}>\frac{7}{6}>\frac{8}{7}>\frac{9}{8}\)
\(\frac{3}{2};\frac{4}{3};\frac{5}{4};\frac{6}{5};\frac{7}{6};\frac{8}{7};\frac{9}{8}\)
\(\frac{3}{2};\frac{4}{3};\frac{5}{4};\frac{6}{5};\frac{7}{6};\frac{8}{7};\frac{9}{8}\)\(\frac{3}{2};\frac{4}{3};\frac{5}{4};\frac{6}{5};\frac{7}{6};\frac{8}{7};\frac{9}{8}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
a)2/3, 4/5,11/15
b)5/6,5/4,7/9,21/5
a) 9/7,3/2,17/14
b)3/2,5/4,7/10,3/5
lấy mt ra,quy đồng rùi sắp xếp như thường,có thek thui!!!!!!!!!!!!!!!!!!!!
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\frac{3}{4}< \frac{3}{2}< \frac{5}{3}< \frac{5}{2}< \frac{6}{1}< \frac{29}{4}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
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.
a) 6,795 < 7,659 < 7,695 < 9,576 < 9,756
b) \(\frac{5}{10}< \frac{5}{4}< \frac{3}{2}< 2\)\(< 2,2< \frac{9}{4}\)
@Bảo
#Cafe