171717/232323 = 17.10101/23.10101 = 17/23 < 19/23

Rút gọn phân số ta có:

              171717 : 10101 = 17

              232323 : 10101 = 23

Và bằng 17/23 < 19/23.

rút gọn phân số 171717/232323 = 17/23.

vì 17/23 < 19/23 .

Vậy 171717/232323 <19/23

x=y      

\(x=\frac{-17}{23}\)

\(y=\frac{-171717}{232323}=\frac{\left(-171717\right):10101}{232323:10101}=\frac{-17}{23}\)

\(\Rightarrow x=y\)

a: \(-\dfrac{11}{33}< 0< \dfrac{25}{16}\)

b: \(-\dfrac{17}{23}=\dfrac{-171717}{232323}\)

b] \(\frac{127}{-128}>-1\)\(;\)\(\frac{-1345}{1244}< -1\)

\(\Rightarrow\frac{127}{-128}>-1>\frac{-1345}{1244}\Rightarrow\frac{127}{-128}>\frac{-1345}{1244}\)

c]\(\frac{-11}{33}=\frac{-1}{3}\)\(;\)\(\frac{25}{-76}>\frac{25}{-75}=\frac{-1}{3}\)\(\Rightarrow\frac{-11}{33}=\frac{-1}{3}< \frac{25}{-76}\Rightarrow\frac{-11}{33}< \frac{25}{-76}\)

d] \(\frac{-171717}{232323}=\frac{-17\times10101}{23\times10101}=\frac{-17}{23}\)\(\Rightarrow\frac{-17}{23}=\frac{-171717}{232323}\)

a, -1/4<0

1/100>0

=> -1/4<1/100

b) -11/32=-11.25/ 32.25=-275/800

-25/ 76=-25.11/ 76.11=-275/ 836

=>275/800>275/836

=> -275/800< -275/836

c) -127/128> -1

-1345/1344< -1

=> 127/ -128> -1345/ 1344

d) -171717/ 232323= -17.10101/ 23.10101=-17/23

e) -1/25<0

1/1225>0

=> -1/25< 1/1225

f) 215/216<1

104/103>1

=> 215/216< 104/103

g) -12/19= 19-31/ 19= 1-31/19

-14/17= 17-31/ 17= 1-31/17

mà 31/19< 31/17

=> 1-31/19> 1-31/17

=>-12/19> -14/17

12782/997177

a) vì 21*52=-39*-28

b) vì -1717*232323=-171717*2323