![](https://rs.olm.vn/images/avt/0.png?1311)
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\dfrac{5}{7}\)>\(\dfrac{6}{21}\)
\(\dfrac{18}{24}\)>\(\dfrac{15}{25}\)
\(\dfrac{12}{13}\)=\(\dfrac{1212}{1313}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
Ta có: \(\frac{1212}{1313}=\frac{12x101}{13x101}=\frac{12}{13}\)
Vậy \(\frac{12}{13}=\frac{1212}{1313}\)
Ta có: 1212/1313 = 12.101/13.101= 12/13
Vì 12/13 = 12/13 nên 12/13 = 1212/1313
Vây...
![](https://rs.olm.vn/images/avt/0.png?1311)
Ta có: \(\frac{1212}{1515}=\frac{12}{15}\)
=>\(\frac{12}{15}=\frac{1212}{1515}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
1212/3737
=12/37<12/36=1/3 (1)
200920092009/602660266026
=2009/6026>2009/6027=1/3 (2)
Từ (1) và(2) suy ra:
1212/3737<1/3<200920092009/602660266026
=>1212/3737<200920092009/602660266026
![](https://rs.olm.vn/images/avt/0.png?1311)
121/143=11/13
1212/1414=6/7
123123/456456=123/456=41/152
![](https://rs.olm.vn/images/avt/0.png?1311)
a:\(\dfrac{12}{13}\)
b:\(\dfrac{12}{13}\)
c:\(\dfrac{121}{131}\)
Trả lời : 1212/1213<1 , 1221/1212>1
1 > 1212 1213 , 1 < 1221 / 1212