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Bài làm
\(\frac{10-1\frac{1}{6}\times\frac{6}{7}}{21:\frac{11}{2}+5\frac{2}{12}}\)
\(=\frac{10-\frac{7}{6}\times\frac{6}{7}}{21\times\frac{2}{11}+\frac{62}{12}}\)
\(=\frac{10-1}{\frac{42}{11}+\frac{62}{12}}\)
\(=9:(\frac{42}{11}+\frac{62}{12})\)
\(=9:\left(\frac{504}{132}+\frac{682}{132}\right)\)
\(=9:\frac{1186}{132}\)
\(=9:\frac{593}{66}\)
\(=9\times\frac{66}{593}\)
\(=\frac{594}{593}\)
# Hông bt có đúng k nx. #
\(\frac{10-1\frac{1}{6}\times\frac{6}{7}}{21\div\frac{11}{2}+5\frac{2}{12}}\)
\(=\frac{10-\frac{7}{6}\times\frac{6}{7}}{21\div\frac{11}{2}+\frac{62}{12}}\)
\(=\frac{10-1}{\frac{42}{11}+\frac{31}{6}}\)
\(\frac{9}{\frac{593}{66}}\)