QĐMS 13/57=949/3363
29/73=2117/3363
2117/3363>949/3363 =>13/57<29/73 còn lại bạn tự làm
29/73 > 13/57
7/-12>11/-18
nha bạn ơi hì hì
\(\frac{13}{57}<\frac{29}{73}\)câu a
\(\frac{7}{-12}>\frac{11}{-18}\)
a) \(\frac{13}{57}<\frac{29}{73}\)
b)\(\frac{7}{-12}>\frac{11}{-18}\)
Ta có:
13/57=13*73/57*73=949/4161
29/73=29*57/73*57=1653/4161
=> 949/4161 < 1653/4161
Vậy 13/57 < 29/73
a,\(\frac{13}{57}<\frac{29}{73}\)vì 0.22<0.39
b,\(\frac{7}{-12}>\frac{11}{-18}\)vì-0.583>-0.611