Question

[@Hacker.vn]

• So sanh 

            a,    \(\frac{19}{18}va\frac{2011}{2010}\) 

            b,     \(\frac{72}{73}va\frac{98}{99}\)

            c,      \(\frac{7}{9}va\frac{19}{17}\)

Answer 1

[VRCT_gnk_Thùy Linh]

A,Ta có:\(\frac{19}{18}=1+\frac{1}{18};\frac{2011}{2010}=1+\frac{1}{2010}\)

      Vì \(\frac{1}{18}>\frac{1}{2010}\Rightarrow\frac{19}{18}>\frac{2011}{2010}\)

B,ta có:\(1-\frac{72}{73}=\frac{1}{3};1-\frac{98}{99}=\frac{1}{99}\)

       Vì \(\frac{1}{3}>\frac{1}{99}\Rightarrow\frac{72}{73}< \frac{98}{99}\)

C,Vì \(\frac{7}{9}< 1< \frac{19}{17}\Rightarrow\frac{7}{9}< \frac{19}{17}\)

Answer 2

[tôi ko thik sự giả dối]

k cho tui rùi tui giải cho nghe !​