\(-\left|-\frac{3}{4}\right|-\left[13+25\%-\frac{1}{6}\right]=14\)
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![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(-|-\frac{3}{4}|-\left(13+25\%-\frac{1}{6}\right)+14\)
\(=\frac{-3}{4}-\left(\frac{13}{1}+\frac{1}{4}-\frac{1}{6}\right)+\frac{14}{1}\)
\(=\frac{-3}{4}-\left(\frac{156}{12}+\frac{3}{12}-\frac{2}{12}\right)+\frac{14}{1}\)
\(=\frac{-3}{4}-\frac{157}{12}+\frac{14}{1}=\frac{-9}{12}-\frac{157}{12}+\frac{168}{12}\)
\(=\frac{1}{6}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(=\frac{-3}{4}-\frac{157}{12}+14\)
\(=\frac{37}{3}+14\)
= tự tính
\(-\left|\frac{-3}{4}\right|+\left(13+\frac{25}{100}-\frac{1}{6}\right)+14\)
\(=\frac{-3}{4}+\left(13+4-\frac{1}{6}\right)+14\)
\(=\frac{-3}{4}+17+14-\frac{1}{6}\)
\(=\left(17+14\right)+\left(\frac{-3}{4}-\frac{1}{6}\right)\)
\(=31+\frac{-11}{12}\)
\(=\frac{361}{12}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\frac{\left(13\frac{1}{4}-2\frac{5}{7}-10\frac{5}{6}\right).230\frac{1}{25}+46\frac{3}{4}}{\left(1\frac{3}{10}+\frac{10}{3}\right):\left(12\frac{1}{3}-14\frac{2}{7}\right)}=\frac{\left(\frac{53}{4}-\frac{19}{7}-\frac{65}{6}\right).\frac{5751}{25}+\frac{187}{4}}{\left(\frac{13}{10}+\frac{10}{3}\right):\left(\frac{37}{3}-\frac{100}{7}\right)}\)
\(=\frac{\left(\frac{1113}{84}-\frac{228}{84}-\frac{910}{84}\right).\frac{5751}{25}+\frac{187}{4}}{\left(\frac{39}{30}+\frac{100}{30}\right):\left(\frac{259}{21}-\frac{300}{21}\right)}\)
\(=\frac{\frac{-25}{84}.\frac{5751}{25}+\frac{187}{4}}{\frac{139}{30}:\frac{-41}{21}}\)
\(=\frac{\frac{-1917}{28}+\frac{1309}{28}}{\frac{139}{30}.\frac{-21}{41}}\)
\(=\frac{\frac{-608}{28}}{\frac{-973}{410}}=\frac{-152}{7}.\frac{410}{-973}=\frac{62320}{6811}\)