Question

So sánh

A = \(\frac{976}{987}+\frac{987}{988}\)B=\(\frac{986+987}{987+988}\) 

Answer 1

A = \(\frac{976}{987}\) + \(\frac{987}{988}\) = \(1,987842971\)

B = \(\frac{986+987}{987+988}\)= \(\frac{1973}{1975}\) = \(0,9989873418\)

Mà \(1,987842971\)> \(0,9989873418\)

Nên: A > B

Answer 2

Ta có: \(\frac{986}{987}>\frac{986}{987+988}\)

\(\frac{987}{988}>\frac{987}{987+988}\)

\(\Rightarrow\frac{976}{987}+\frac{987}{988}>\frac{986+987}{987+988}\)

=> A > B