Question

 

2-аb/2a+ab + 2b/2+b=2-ab/a(2+b) + 2b/2+b=

А ДАЛЬШЕ???

Answer 1

2-аb / 2a+ab + 2b / 2+b=

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

=(2-ab + 2ab ) / a(2+b)=

=(2+ab) / a(2+b)

 

Answer 2

 

$(2-ab)/(2a+ab) + 2b/(2+b) =\ (2-ab)/a(2+b) + 2b/(2+b) =\ (2-ab)/a(2+b) + 2ab/a(2+b) =\ (2-ab+2ab)/a(2+b) = (2+ab)/(a2+ab)$