Ta có:

\( \dfrac{7256.4375-725}{3650+4375.7255}\\ =\dfrac{7255.4375+4375-7255}{3650+4375.7255}\\ =\dfrac{7255.4375+\left(4375-725\right)}{3650+4375.7255}\\ =\dfrac{7255.4375+3650}{3650+4375.7255}\\ =1\)

   Vậy giá trị của  \(\dfrac{7256.4375-725}{3650+4375.7255}=1\)

7256.4375-725=(7255+1).4375-725=7255.4375+4375-725=7255.4375+3650

⇒(7256.4375−725)/(3650+4375.7255)=(7255.4375+3650)/(3650+4375.7255)=1

\(\frac{7256.4375-725}{3650+4375.7255}=\frac{\left(7255+1\right).4375-725}{3650+4375.7255}\)

\(=\frac{7255.4375+4375-725}{3650+4375.7255}\)

\(=\frac{7255.4375+3650}{3650+4375.7255}\)

\(=1\)

= 4375 . ( 7256 + 7255 )  - 725/3650

= 4375 .14511 - 725/3650

=63485625 - 725/3650

=53485624,8

(7256.4375 - 725)/(3650 + 4375.7255) 
= [(7255 +1).4375 - 725]/(3650 + 4375.7255) 
= [(7255.4375 + 1.4375 - 725]/(3650 + 4375.7255) 
= (7255.4375 + 3650)/(3650 + 4375.7255) = 1 
li ke nha

\(\dfrac{7256\cdot4375-725}{3650+4375\cdot7255}\\ =\dfrac{\left(7255+1\right)\cdot4375-725}{7255\cdot4375+3650}\\ =\dfrac{7255\cdot4375+4375-725}{7255\cdot4375+3650}\\ =\dfrac{7255\cdot4375+3650}{7255\cdot4375+3650}\\ =1\)

=1

l,i,k,e mình nha bạn thân

\(B=\frac{7256.4375-725}{3650+4375.7255}=\frac{7255.4375+4375-725}{7255.4375+3650}=\frac{7255.4375+3650}{7255.4375+3650}=1\)

\(\frac{7256.4375-725}{3650+4375.7255}\)

\(=\frac{\left(7255+1\right).4375-725}{3650+4375.7255}\)

\(=\frac{7255.4375+4375-725}{3650+4375.7255}\)

\(=\frac{7255.4375+3650}{3650+4375.7255}\)

\(=1\)

\(\frac{7256.4375-725}{3650+4375.7255}=1\)

\(\frac{7256.4375-725}{3650+4375.7255}\) 

\(=\frac{\left(7256-1\right).4375+4375-725}{3650+4375.7255}\)

\(=\frac{7255.4375+3650}{3650+4375.7255}\)

\(=1\)

63485624.8

mình làm phần c trước nhé

a)28.13+74.14

=14.26+74.14

=14.(26+74)

=1400

b) 18.123+9.4567.2+3.5310.6

=18.(123+4567+5310)

=18.10000

=180000

c)S=1

~~~~~~~~~~~ai đi ngang qua nhớ để lại k ~~~~~~~~~~~~~

 ~~~~~~~~~~~~ Chúc bạn sớm kiếm được nhiều điểm hỏi đáp ~~~~~~~~~~~~~~~~~~~

~~~~~~~~~~~ Và chúc các bạn trả lời câu hỏi này kiếm được nhiều k hơn ~~~~~~~~~~~~

S = 7256.4375 - 725 / 7255.4375 + 3650

S = ( 7255+1) . 4375 - 725 / 7255.4375 + 3650

S = 7255.4375+4375 - 725 / 7255.4375 +3650

S = 4375 - 725 / 3650

S = 3650 / 3650

S = 1