so sanh :  \(\frac{72}{73}\) va \(\frac{78}{99}\); \(\frac{7}{9}\) va \(\frac{19}{17}\); \(\frac{18}{31}\) va \(\frac{15}{37}\) ; \(\frac{72}{73}\) va \(\frac{58}{99}\)

A=\(\frac{-9}{10^{2010}}+\frac{-19}{10^{2011}}\)

B=\(\frac{-9}{10^{2011}}+\frac{-19}{10^{2010}}\)

So sanh A va B

so sanh A va B bit

A=\(\frac{1}{3}+\frac{1}{4}+...+\frac{1}{17}\)

B=\(\frac{2010}{2011}+\frac{2011}{2012}+\frac{2012}{2010}\)

So sanh  :

A=\(\frac{2010}{2011}\)+ \(\frac{2011}{2012}+\frac{2012}{2013}\)va B=\(\frac{2010+2011+2012}{2011+2012+2012}\)

C = 333⁴⁴⁴ va 444³³³

So sanh P va Q

P=\(\frac{2010}{2011}+\frac{2011}{2012}+\frac{2012}{2013}\)

Q=\(\frac{2010+2011+2012}{2011+2012+2013}\)

KO QUY DONG MAU HAY SO SANH

\(A=\frac{-9}{10^{2010}}+\frac{-19}{10^{2011}}\)

\(B=\frac{-9}{10^{2011}}+\frac{-19}{10^{2010}}\)

khong quy dong mau so hay so sanh;

                 A= \(\frac{-9}{10^{2010}}+\frac{-19}{10^{2011}};\) B= \(\frac{-9}{10^{2011}}+\frac{-19}{10^{2010}}\)

SO SANH

A=\(\frac{3}{4}+\frac{8}{9}+............+\frac{999}{1000}\)voi 98 va 99

so sanh

a)-22/45 va -51/101

b)so sanh A=\(\frac{^{2009^{2009}}+1}{^{2009^{20010}}+1}\)va B=\(\frac{2009^{2010}-2}{2009^{2011}-2}\)