Вправа 101 - 200 » 161

161. Додайте дроби: a) 1/x + 3/2x = (2+3)/2x = 5/2x; б) a/c + (3-a)/4c = (4a+3-a)/4c = (3a+3)/4c; в) 〖a+x〗^(\3)/2x + 〖x-a〗^(\2)/3x = (3a+3x+2x-2a)/6x = (a+5x)/6x; г) 1^(\x)/(a+b) + 3^(\1)/(x(a+b)) = (x+3)/x(a+b) ; ґ) (a-c)/c + 〖-a〗^2/(c(a-c)) = ((a-c)(a-c)- a^2)/(c(a-c)) = (a^2- 2ac+ c^2- a^2)/(c(a-c)) = (c^2- 2ac)/(c(a-c)); д) 1^(\3x)/(〖2a〗^2 bx^3 ) + 5^(\2ba)/〖3ax〗^4 = (3x+10ba)/(〖6a〗^2 bx^4 ).