Question

\(\frac{-3}{27}+\frac{56}{88}\) 

 

 

\(\frac{-24}{54}+\frac{35}{-126}\)

 

tính tổng rồi rút gọn

 

Answer 1

\(\frac{-24}{54}+\frac{35}{-126}=\frac{-4}{9}+\frac{-5}{18}=\frac{-8}{18}+\frac{-5}{18}=\frac{-8+-5}{18}=\frac{-13}{18}\)

Answer 2

\(-\frac{3}{27}+\frac{56}{88}=\frac{-1}{9}+\frac{7}{11}=\frac{-11}{99}+\frac{63}{99}=\frac{-11+63}{99}=\frac{52}{99}\)

Answer 3

\(\frac{-3}{27}+\frac{56}{88}=\frac{-1}{9}+\frac{7}{11}=\frac{-11}{99}+\frac{63}{99}=\frac{52}{99}\)