A = 2015 x ( 2014 + 1)

A = 2015 x 2014 + 2015

B = 2014 x ( 2015 + 1 )

B= 2014 x 2015 + 2014

Vậy A > B 

tick nha

A=2015x(2014+1)

A=2015x2014+2015

B=2014x(2015+1)

B=2014x2015+2014

Vậy A>B

\(\frac{2015}{2014}>\frac{2014}{2013}\)

\(\frac{2015}{2017}>\frac{2011}{2013}\)

 a)\(\frac{2015}{2014}>\frac{2014}{2013}\) 

b)\(\frac{2015}{2017}>\frac{2011}{2013}\)

em moi hoc lop 6

2014/x + 2015/y + 2016/z > 2014+2015+2016/x+y+z

bạn ko nên trả lời quá nhiều cùng 1 câu hỏi mà kết quả trả lời giống nhau.

A = \(\frac{2013}{2014}+\frac{2014}{2015}>\frac{1}{2}+\frac{1}{2}=1\)

\(B=\frac{2013+2014+2015}{2014+2015+2016}<1\)

\(Vậy:A>B\)

Đúng nha Nguyễn Bình Minh

so sánh:

\(A=\frac{2013}{2014}+\frac{2014}{2015}+\frac{2015}{2016}\)  và\(B=\) \(\frac{2013+2014+2015}{2014+2015+2016}\)

                                                             \(B=\frac{2013}{2014+2015+2016}+\frac{2014}{2014+2015+2016}+\frac{2015}{2014+2015+2016}\)

Ta có: \(\frac{2013}{2014}>\frac{2013}{2014+2015+2016}\)

          \(\frac{2014}{2015}>\frac{2014}{2014+2015+2016}\)

          \(\frac{2015}{2016}>\frac{2015}{2014+2015+2016}\)

\(\Rightarrow\frac{2013}{2014}+\frac{2014}{2015}+\frac{2015}{2016}>\frac{2013+2014+2015}{2014+2015+2016}\)

Vậy: \(A>B\)

A = 2016^2015 +1 / 2016^2014+1 < 2016^2015 + 1 + 2015 / 2016^2014 + 1 + 2015

                                                   = 2016^2015 + 2016 / 2016^2014 + 2016

                                                   = 2016(2016^2014 + 1 ) / 2016(2016^2013 +1)

                                                   = 2016^2014 + 1 / 2016^2013 + 1 = B

=> A < B

giúp mk câu trên luôn nhé Mai Phương

so sánh: \(A=\frac{2014}{2015}+\frac{2015}{2016}\)  và \(B=\frac{2014+2015}{2015+2016}\)

                                               \(\Rightarrow B=\frac{2014}{2015+2016}+\frac{2015}{2015+2016}\)

Ta có: \(\frac{2014}{2015}>\frac{2014}{2015+2016}\) vì \(2015<2015+2016\)

          \(\frac{2015}{2016}>\frac{2015}{2015+2016}\) vì \(2016<2015+2016\)

\(\Rightarrow\frac{2014}{2015}+\frac{2015}{2016}>\frac{2014}{2015+2016}+\frac{2015}{2015+2016}\)

\(\Rightarrow\frac{2014}{2015}+\frac{2015}{2016}>\frac{2014+2015}{2015+2016}\)

Vậy:     \(A>B\)

Tâ có :

B = 2014 x 2016 + 2015

B = 2014 x 2016 + 2016 - 1

B = 2016 x ( 2014 + 1 ) - 1

B = 2016 x 2015 - 1

Vậy A = B

2016 x 2015 - 1 = 2014 x 2016 + 2015.

A=4062239

B=4062239

A=B

A = 1/1008 + 1/2013 - 1/2006*2007 -> A cho giá trị là số âm (lớp 5 hs không học số âm) -> đề sai