222222/181818 =11/9

a.11/9          b.1/9              c.22/181

\(\frac{222222}{181818}=\frac{20202.11}{20202.9}=\frac{11}{9}\)

phân số lớn hơn là:345345/347347

1/3 nhé

\(\dfrac{181818}{151515}\) = \(\dfrac{666}{999}\)

Rút gọn đi

2727/2323 = 2727 : 101 = 27                                     2323 : 101 = 23

272727/232323 = 272727 : 10101 = 27                                       232323 : 10101 = 23

ê tui mới học lớp 4 thui nha

\(\frac{27}{31}=\frac{27x10101}{31x10101}=\frac{272727}{313131}\)

27/31 = 272727/313131

27/31 = 272727/313131

Rút gọn phâ số ta dc:

\(=27.\frac{17}{27}+\frac{37}{36}\)

\(=17+\frac{37}{36}=\frac{649}{36}\)

\(=\frac{649}{36}\)nhé bạn

(27x1717171/272727+373737/363636)

=(27x17/27+37/36)

=17+37/26

=18  1/36

\(\frac{3}{8}\)

Hok T~

Ta có :

\(\frac{272727}{727272}=\frac{272727\div90909}{727272\div90909}=\frac{3}{8}\)

272727/727272=272727/727272 :9=333/888

272727/292929>25252525/37373737

Tk nha

\(\frac{272727}{323232}=\frac{27\times10101}{32\times10101}=\frac{27}{32}\)

\(\frac{430430}{560560}=\frac{10010\times43}{10010\times56}=\frac{43}{56}\)

ta co \(\frac{272727}{323232}=\frac{27}{32};\frac{430430}{560560}=\frac{43}{56}\)

vi 27/32>43/56

=>       ..............

272727   272727:10101    27              430430       430430:1001            430

---------=   ------------------- = -------------  ; -----------  =   -----------------------  =    ------

323232    323232:10101     32           560560         560560:1001           560