Đáp án:
$\dfrac{-15}{23}$= $\dfrac{-151515}{232323}$
Giải thích các bước giải:
Có: $\dfrac{-15}{23}$= $\dfrac{-15.10101}{23.10101}$= $\dfrac{-151515}{232323}$
Mà $\dfrac{-151515}{232323}$ $=$ $\dfrac{-151515}{232323}$
Suy ra: $\dfrac{-15}{23}$= $\dfrac{-151515}{232323}$
Vậy $\dfrac{-15}{23}$= $\dfrac{-151515}{232323}$
CHÚC BẠN HỌC TỐT$!!!$