So sánh C và D , biết :
C = 2013/2014 + 2014/2015
D = \(\frac{2013+2014}{2014+2015}\)
Các bạn giải rõ ra hộ mk nha
Những câu hỏi liên quan
1. So sánh M và N ( Ko Quy Đồng)
biết M = \(\frac{2012}{2013}+\frac{2013}{2014}+\frac{2014}{2015}\)và
N =\(\frac{2012+2013+2014}{2013+2014+2015}\)
( Giải rõ ràn nha) tớ tick cho
\(N=\frac{2012+2013+2014}{2013+2014+2015}=\frac{2012}{2013+2014+2015}+\frac{2013}{2013+2014+2015}+\frac{2014}{2013+2014+2015}\)
Ta thấy: \(\frac{2012}{2013}>\frac{2012}{2013+2014+2015}\)
\(\frac{2013}{2014}>\frac{2013}{2013+2014+2015}\)
\(\frac{2014}{2015}>\frac{2014}{2013+2014+2015}\)
\(\Rightarrow M=\frac{2012}{2013}+\frac{2013}{2014}+\frac{2014}{2015}>N=\frac{2012}{2013+2014+2015}+\frac{2013}{2013+2014+2015}+\frac{2014}{2013+2014+2015}\)
Vậy M>N
Đúng 0
Bình luận (0)
So sánh C và D
C = 2013/2014 + 2014/2015
D = 2013+2014 / 2014+2015
So sánh : C= 2013/2013+2014 + 2014/2014+2015 + 2015/2015+2016 ; D=2
\(C=\dfrac{2013}{2013}+2014+\dfrac{2014}{2014}+2015+\dfrac{2015}{2015}+2016\)
\(=1+2014+1+2015+1+2016\)
\(=6048>2\)
Vậy: \(C>D\)
Đúng 0
Bình luận (1)
So sánh C= \(\frac{2013}{2014}+\frac{2014}{2015}\)
và D=\(\frac{2013+2014}{2014+2015}\)
D\(\frac{2013}{2014+2015}+\frac{2014}{2014+2015}\)
Vì \(\frac{2013}{2014}>\frac{2013}{204+2015}\)
và \(\frac{2014}{2015}>\frac{2014}{2014+2015}\)
nên C>D
Ủng hộ mk nha
Đúng 0
Bình luận (0)
\(\frac{2013}{2014}+\frac{2014}{2015}=1,999...\)
\(\frac{2013+2014}{2014+2015}=4029\)
nen D>C
Đúng 0
Bình luận (0)
So sánh các biểu thức sau: A =2013+2014/2014+2015 và B=2013/2014 + 2014/2015
A=\(\dfrac{2013+2014}{2014+2015}=\dfrac{2013}{2014+2015}+\dfrac{2014}{2014+2015}\)
B=\(\dfrac{2013}{2014}+\dfrac{2014}{2015}\)
Vì \(\dfrac{2013}{2014}>\dfrac{2013}{2014+2015}\); \(\dfrac{2014}{2015}>\dfrac{2014}{2014+2015}\) nên B>A
Đúng 0
Bình luận (0)
a) So sánh \(\frac{2013}{2015}\) và \(\frac{2014}{2016}\)
b) So sánh \(\frac{2013+2014}{2014+2015}\) và \(\frac{2013}{2014}+\frac{2014}{2015}\)
a)\(\frac{2013}{2015}< \frac{2014}{2016}\)
b)\(\frac{2013+2014}{2014+2015}< \frac{2013}{2014}+\frac{2014}{2015}\)
Đúng 0
Bình luận (0)
ta có tính chất \(\frac{a}{b}\)>1 suy ra \(\frac{a.m}{b.m}\).........
Đúng 0
Bình luận (0)
so sánh
\(\frac{2013}{2014}+\frac{2014}{2015}và\frac{2013+2014}{2014+2015}\)
Ta có: \(\frac{2013}{2014}>\frac{2013}{2014+2015}\) (1)
\(\frac{2014}{2015}>\frac{2014}{2014+2015}\) (2)
ộng caác bất đẳng thứa (1) và (2) vào vế với vế:
\(\frac{2013}{2014}+\frac{2014}{2015}>\frac{2013+2014}{2014+2015}\Rightarrow A>B\)
Đúng 0
Bình luận (0)
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
Đúng 0
Bình luận (0)
Xem thêm câu trả lời
So sánh:
\(\frac{2013}{2014}+\frac{2014}{2015}+\frac{2015}{2016}\)và\(\frac{2013+2014+2015}{2014+2015+2016}\)
so sánh phân số:
a) n+1/n+2 và n/n+3 (n nguyên dương)
b) 2013*2014-1/2013*2014 và 2014*2015-1/2014*2015
LÀM GẤP GIÚP MK NHA. SÁNG MAI MK PHẢI NỘP RÙI. CẢM ƠN NHA!!!