Question

[tran le xuan huong]

tính 

6.-5/18

-13/24+-5/21.7/25

-5/13-3/26.-2/3

{1/3+-7/6}.{3/8+-3/24}

Answer 1

[Nie =)))]

\(6.\frac{-5}{18}=\frac{-30}{18}=\frac{-5}{3}\)

\(\frac{-13}{24}+\frac{-5}{21}.\frac{7}{25}=\frac{-13}{24}+\frac{-1}{15}=\frac{-73}{120}\)

\(\frac{-5}{13}-\frac{3}{26}.\frac{-2}{3}=\frac{-5}{13}-\frac{-1}{13}=\frac{-4}{13}\)

\(\left\{\frac{1}{3}+\frac{-7}{6}\right\}.\left\{\frac{3}{8}+\frac{-3}{24}\right\}=\frac{-5}{6}.\frac{1}{4}=\frac{-5}{24}\)

Answer 2

[Nguyễn Thị Thu Huyền]

=-30/18=5/3

=-13/24+-30/525=