Question

A = \(\frac{54.107-53}{53.107+54}\) và B = \(\frac{135.269-133}{134.269+135}\)

Answer 1

so sánh hả

Answer 2

ko biết nữa 

Answer 3

54.107-53 phần 53.107+54

=5725 phần 5725

->A>1

=1

B=36182 phần 36181

-> B<1

->A > b

Answer 4

Đúng rồi đó bạn hộ mình được o ?

Answer 5

A = 54.107-53 / 53.107+54 = (53+1).107-53 / 53.107+54

= 53.107 + 107 - 53 / 53.107+54 = 53.107+54 / 53 . 107 + 54

=> A = 1

B = 135.269-133 / 134.269+135

tính B như trên rồi so sánh

kết quả là A > B

Answer 6

Ta có:

\(A=\dfrac{54\cdot107-53}{53\cdot107+54}=\dfrac{53\cdot107+107-53}{53\cdot107+54}=\dfrac{53\cdot107+54}{53\cdot107+54}=1\)

\(B=\dfrac{135\cdot269-133}{134\cdot269+135}=\dfrac{134\cdot269+269-133}{134\cdot269+135}=\dfrac{134\cdot269+136}{134\cdot269+135}>1\)

=>A>B

Vậy A>B

Answer 7

Ta có : A =\(\dfrac{54.107-53}{53.107+54}=\dfrac{53.107+107-53}{53.107+54}=\dfrac{53.107+\left(107-53\right)}{53.107+54}=\dfrac{53.107+54}{53.107+54}=1\)Ta có : B = \(\dfrac{135.269-133}{134.269+135}=\dfrac{134.269+269-133}{134.269+135}=\dfrac{134.269+\left(269-133\right)}{134.269+135}=\dfrac{134.269+136}{134.269+135}=\dfrac{134.269+135}{134.269+135}+\dfrac{1}{134.269+135}=1+\dfrac{1}{134.269+135}\) => B > 1 ( vì \(\dfrac{1}{134.269+135}>0\) )

Mà A = 1

=> A < B

Vậy A < B