\(\frac{6:\frac{3}{5}-1\frac{1}{6}\cdot\frac{6}{7}}{4\frac{1}{5}\cdot\frac{10}{11}+5\frac{2}{11}}=1\)

mình cũng bằng 1

\(\frac{6:\frac{3}{5}-1\frac{1}{6}.\frac{6}{7}}{4\frac{1}{5}.\frac{10}{11}+5\frac{2}{11}}=\frac{10-\frac{7}{6}.\frac{6}{7}}{\frac{21}{5}.\frac{10}{11}+\frac{57}{11}}=\frac{10-1}{\frac{42}{11}+\frac{57}{11}}=\frac{9}{9}=1\)

\(\frac{11}{9}+\frac{35}{18}\)

\(=\frac{19}{6}\)

\(\frac{22}{21}:\frac{1}{2}+\frac{25}{12}:\frac{1}{2}\)

\(\frac{44}{21}+\frac{25}{6}\)

\(\frac{263}{42}\)

57/18

\(\frac{18}{11}+\left(\frac{7}{4}-\frac{3}{5}\right):\frac{1}{2}\)

\(\frac{18}{11}+\frac{23}{20}:\frac{1}{2}\)

\(\frac{18}{11}+\frac{23}{20}\times\frac{2}{1}\)

\(\frac{18}{11}+\frac{23}{10}\)

\(\frac{433}{110}\)

= 1

Tính từ từ là ra :))

=( 6 x\(\frac{5}{3}\) - \(\frac{7}{6}\) x\(\frac{6}{7}\) ) : (\(\frac{21}{5}\) x\(\frac{10}{11}\) +\(\frac{57}{11}\))

 = (10 - 1) :(\(\frac{42}{11}\)+\(\frac{57}{11}\))

=\(\frac{9}{9}\)= 1

b) \(\frac{1}{5}:\frac{1}{3}\cdot\frac{\frac{1}{3}}{\frac{1}{5}}+1996\)

\(=\frac{3}{5}\cdot\left(\frac{1}{3}:\frac{1}{5}\right)+1996\)

\(=\frac{3}{5}\cdot\frac{5}{3}+1996\)

\(=1+1996=1997\)

a) \(\frac{2}{3}:\frac{5}{7}\cdot\frac{5}{7}\cdot\frac{2}{3}+1934\)

\(=\frac{2\cdot7}{5\cdot3}\cdot\frac{5\cdot2}{7\cdot3}+1934\)

\(=\frac{2\cdot7\cdot5\cdot2}{5\cdot3\cdot7\cdot3}+1996=\frac{4}{9}+1996\)

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