thực hiện phép tính 

a/ \(\frac{15}{34}\)+ \(\frac{7}{21}\)+ \(\frac{19}{34}\)- 1\(\frac{15}{17}\)+ \(\frac{2}{3}\)

b/ 16\(\frac{2}{7}\): (\(\frac{-3}{5}\)) - 28\(\frac{2}{7}\): (\(\frac{-3}{5}\))

c/ ( -2 ) ³ . (\(\frac{3}{4}\)-  0,25 ) : ( 2\(\frac{1}{4}\)-  1\(\frac{1}{6}\))

GIÚP MK NHÉ , ARIGATO , CÁM ƠN RẤT NHIỀU

Câu 1: Thực hiện phép tính bằng cách hợp lí

\(\frac{15}{35}+\frac{7}{21}+\frac{19}{34}-1\frac{15}{17}+\frac{2}{3}\)

\(\left(-2\right)^3.\left(\frac{3}{4}-0,25\right):\left(2\frac{1}{4}-1\frac{1}{6}\right)\)

\(16\frac{2}{7}:\left(-\frac{3}{5}\right)+28\frac{2}{7}:\left(-\frac{3}{5}\right)\)

Câu 2: Tìm x biết

\(2.x-\frac{5}{4}=\frac{20}{15}\)

\(1,5:0,3=x:-15\)

\(|2x-1|=2\)

Câu 3: Thực hiện phép tính hợp lí

\(\frac{11}{12}.\frac{15}{33}+\frac{11}{12}.\frac{2}{22}\)

\(3/3\frac{1}{8}.11\frac{17}{19}-3\frac{1}{8}.13\frac{17}{19}\)

\(28\frac{2}{7}:\left(-\frac{3}{5}\right)+16\frac{2}{7}:\left(-\frac{3}{5}\right)\)

Bài 1: Thực hiện phép tính( bằng cahcs hợp lí nếu có thể)

\(a)\frac{7}{25}+\frac{4}{13}-\frac{5}{2}+\frac{18}{25}-1\frac{4}{13}\)

\(b)12-8.\left(\frac{3}{2}\right)^3\)

\(c)100\times\sqrt{0,04}+\sqrt{\frac{25}{16}}\)

\(d)\frac{1}{4}+\frac{3}{4}.\frac{5}{6}\)

\(e)3,75.7,2+2,8.3,75\)

\(f)\frac{1}{2}\sqrt{4}-\sqrt{25}\)

\(g)(\frac{1}{9})^{2005}.9^{2005}-96^2:24^2\)

\(h)\frac{15}{34}+\frac{7}{21}+\frac{19}{34}-\frac{20}{15}+\frac{3}{7}\)

\(k)\left(-3,5\right).\left(-7,2\right)+\left(-3,15\right).12,4+4,8.\left(-3,15\right)\)

\(l)16\frac{2}{7}:\left(-\frac{2}{5}\right)-28\frac{2}{7}:\left(-\frac{2}{5}\right)\)

\(m)\left(-\frac{1}{2}\right)^3+\frac{1}{2}:5\)

\(n)1\frac{1}{23}+\frac{2}{21}-\frac{1}{23}+\frac{19}{21}+2013^0\)

\(h)\frac{-5}{9}.\left(\frac{3}{10}-\frac{2}{5}\right)\)

\(i)\frac{1}{2}\sqrt{64}-\sqrt{\frac{4}{25}+1^{2012}}\)

Giải Hộ Mk vs Mk đng cần gấp để nộp

HELP MEEEEEEEEEEEEEEEEEEEE

Bài 1: tính nhanh

a, \(\frac{6}{7}\)+\(\left(\frac{2}{11}-\frac{6}{7}\right)\)

b, \(\frac{15}{34}+\frac{7}{21}+\frac{9}{34}-1\frac{15}{17}+\frac{2}{3}\)

c, \(\frac{3}{7}.\frac{2}{9}+\frac{7}{9}.\frac{3}{7}\)

                                            Bài dễ ai nhanh tay tui tick cho nè ^^