Question

so sánh giải chi tiết 

\(\frac{-13}{-39}và\frac{121}{363}\)

Answer 1

ta có: \(\frac{-13}{-39}=\frac{13}{39}=\frac{1}{3}\left(1\right)\)

\(\frac{121}{363}=\frac{1}{3}\left(2\right)\)

từ (1) và (2) => \(\frac{-13}{-39}=\frac{121}{363}\)

Answer 2

\(\frac{-13}{-39}=\frac{-13.1}{-13.3}=\frac{1}{3}\)

\(\frac{121}{363}=\frac{121.1}{121.3}=\frac{1}{3}\)

\(\text{Vậy }\frac{-13}{-39}=\frac{121}{363}\)