\(\frac{\frac{3}{67}.\left(17\frac{21}{56}-13\frac{21}{45}\right):\left(\frac{3}{5.22}+\frac{54}{44.65}+\frac{18}{65.72}\right)}{29^3:100-29^3:0,47}\)

\(=\frac{\frac{3}{67}\left(\frac{139}{8}-\frac{202}{15}\right):\left(\frac{3}{110}+\frac{54}{2860}+\frac{18}{4680}\right)}{29^3.\frac{1}{100}-29^3.\frac{47}{100}}\)

\(=\frac{\frac{3}{67}.\frac{469}{120}:\frac{1}{20}}{29^3\left(\frac{1}{100}-\frac{47}{100}\right)}\)

\(=\frac{\frac{7}{40}.20}{29^3.\left(-\frac{23}{50}\right)}\).

\(=\frac{\frac{7}{2}}{-11218,94}\)

\(=-\frac{175}{560947}\)

arigato gozaimasu

Trả lời

b)(1/3+12/67+13/41)-(79/67-28/41)

=1/3+12/67+13/41-79/67+28/41

=1/3+(12/67-79/67)+(13/41+28/41)

=1/3+(-67/67)+41/41

=1/3+(-1)+1

=1/3+0

=1/3.

c)38/45-(8/45-17/51-3/11)

=38/45-8/45+17/51+3/11

=30/45+1/3+3/11

=2/3+1/3+3/11

=3/3+3/11

=1+3/11

=1 3/11.

\(\frac{3}{67}\left(17\frac{21}{45}-13\frac{21}{45}\right)\)

\(=\frac{3}{67}.4\)

\(=\frac{12}{67}\)

\(\frac{3}{67}\left(17\frac{21}{45}-13\frac{21}{45}\right)\)

\(=\frac{3}{67}\times4\)

\(=\frac{12}{67}\)

\(\frac{3}{5.22}+\frac{54}{44.65}+\frac{18}{65.72}=\frac{3}{110}+\frac{54}{2860}+\frac{18}{4680}=\frac{3}{65}+\frac{1}{260}=\frac{1}{20}\)