Question

\(\frac{2}{7}+\frac{7}{-5}+\frac{-2}{35}=??\)

 

\(\frac{4}{3}+|\frac{5}{-6}|+|\frac{-7}{-6}=??|\)

 

giúp mik, mik cần gấp lắm

Answer 1

2/7 + 7/-5 + -2/32 = -41/35

4/3 + | 5\-6 | + | -7/-6 | = 4/3 + 5/6 + 7/6 = 10/3

hok tốt

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Answer 2

\(\frac{2}{7}+\frac{7}{-5}+\frac{-2}{35}\)

\(=\frac{2}{7}+\frac{-7}{5}+\frac{-2}{35}\)

\(=\frac{10}{35}+\frac{-49}{35}+\frac{-2}{35}\)

\(=\frac{-41}{35}\)

\(\frac{4}{3}+\left|\frac{5}{6}\right|+\left|\frac{-7}{-6}\right|\)

\(=\frac{4}{3}+\frac{5}{6}+\frac{7}{6}\)

\(=\frac{8}{6}+\frac{5}{6}+\frac{7}{6}\)

\(=\frac{20}{6}=\frac{10}{3}\)

Answer 3

1)=\(\frac{2}{7}\)-\(\frac{7}{5}\)-\(\frac{2}{35}\)

   =\(\frac{10}{35}\)-\(\frac{49}{35}\)-\(\frac{2}{35}\)

   =\(\frac{-41}{35}\)

2)=\(\frac{4}{3}\)+\(\frac{5}{6}\)+\(\frac{7}{6}\)

   =\(\frac{8}{6}\)+\(\frac{5}{6}\)+\(\frac{7}{6}\)

   =\(\frac{10}{3}\)

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học tốt!!!!!!!!!!!!!!!!!!!

Answer 4

cảm ơn 3 bn nhìu lắm