Question

-8/18-15/27 ?                 x+1/3=3/4?

Answer 1

a, \(-\dfrac{8}{18}-\dfrac{15}{27}=-\dfrac{4}{9}-\dfrac{5}{9}=\dfrac{-4-5}{9}=-\dfrac{9}{9}=-1\)

\(b,\Leftrightarrow x=\dfrac{3}{4}-\dfrac{1}{3}=\dfrac{9}{12}-\dfrac{4}{12}=\dfrac{5}{12}\)

Vậy ...

Answer 2

\(-\dfrac{8}{18}-\dfrac{15}{27}=-1\)

\(x+\dfrac{1}{3}=\dfrac{3}{4}\)

\(x=\dfrac{3}{4}-\dfrac{1}{3}\)

\(x=\dfrac{9}{12}-\dfrac{4}{12}\)

\(x=\dfrac{5}{12}\)