Question

(a+b       2b)       ------  -    -----   * (a+b)  a            a+bпомогите))

Answer 1

1) ( a + b )/a - ( 2b )/( a + b ) = ( ( a + b )^2 - 2ab ) / ( a( a + b )) = ( a^2 + b^2 )/( a( a + b ))
2) [( a^2 + b^2)/( a( a + b ) ] : ( a + b ) = ( a^2 + b^2 ) / ( a( a + b )^2 )

Answer 2

To simplify the given expression:

(a+b - 2b)/a * (a+b)/(a+b)

= (a - b)/a * 1

= a/a - b/a

= 1 - b/a

Therefore, the simplified expression is (1 - b/a).