có giải đấy
người nhanh nhất và chính xác
thưởng 3
\(\frac{-3}{7}+\frac{5}{9}:\frac{-35}{18}\cdot\left(\frac{-34}{59}\right)^0+\left(-1\right)^{2017}\)
\(=\frac{-3}{7}+\frac{5}{9}\cdot\frac{-18}{35}\cdot1+\left(-1\right)\)
\(=\frac{-3}{7}+\frac{-2}{7}+\left(-1\right)\)
\(=\frac{-5}{7}+\left(-1\right)\)
\(=\frac{-5}{7}+\frac{-7}{7}=\frac{-12}{7}\)
\(\frac{-3}{7}+\frac{5}{9}:\left(\frac{-35}{18}\right).\left(\frac{-34}{59}\right)^0+-\left(1\right)^{2017}\)
\(=\frac{-3}{7}+\frac{5}{9}:\left(\frac{-35}{18}\right)-1\)
\(=\frac{-3}{7}+\frac{5}{9}.\left(\frac{-18}{35}\right)-1\)
\(=\frac{-3}{7}+\left(\frac{-2}{7}\right)-1\)
\(=\frac{-3-2}{7}-1=\frac{-5}{7}-1=\frac{-12}{7}\)
\(=\frac{-3}{7}+\frac{5.18}{9.\left(-35\right)}\)-1
\(=\frac{-3}{7}-\frac{2}{7}-1\)
\(=\frac{-12}{7}\)
tham khảo các bn làm sai rồi
\(=-\frac{3}{7}+\frac{5}{9}.\frac{-18}{35}-1+\left(-1\right)\)
\(=-\frac{3}{7}+\frac{-2}{7}-2\)
\(=-\frac{19}{7}\)
\(-\frac{3}{7}+\frac{5}{9}:-\frac{35}{18}.\left(-\frac{34}{59}\right)^0+\left(-1\right)^{2017}\)
\(=-\frac{3}{7}+\frac{5}{9}.\frac{18}{-35}.1+-1\)
\(=-\frac{3}{7}+-\frac{2}{7}+-\frac{7}{7}\)
\(=-\frac{12}{7}\)