Не знаю, может и проще можно, но пока только так
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Не знаю, может и проще можно, но пока только так
2)
=![\frac{26}{11} *\frac{132}{10} -\frac{77}{4} *\frac{32}{11} -\frac{4}{9} *\frac{81}{8} = \frac{156}{5} -56 -\frac{9}{2}=\frac{312-560-45}{10} =-\frac{293}{10} =-29,3; \frac{26}{11} *\frac{132}{10} -\frac{77}{4} *\frac{32}{11} -\frac{4}{9} *\frac{81}{8} = \frac{156}{5} -56 -\frac{9}{2}=\frac{312-560-45}{10} =-\frac{293}{10} =-29,3;](https://tex.z-dn.net/?f=%5Cfrac%7B26%7D%7B11%7D%20%2A%5Cfrac%7B132%7D%7B10%7D%20-%5Cfrac%7B77%7D%7B4%7D%20%2A%5Cfrac%7B32%7D%7B11%7D%20-%5Cfrac%7B4%7D%7B9%7D%20%2A%5Cfrac%7B81%7D%7B8%7D%20%3D%0A%5Cfrac%7B156%7D%7B5%7D%20-56%20-%5Cfrac%7B9%7D%7B2%7D%3D%5Cfrac%7B312-560-45%7D%7B10%7D%20%3D-%5Cfrac%7B293%7D%7B10%7D%20%3D-29%2C3%3B)
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=![\frac{484}{9} *\frac{81}{22} +\frac{41}{5} *\frac{25}{82} -\frac{169}{38} *\frac{57}{13}=198+\frac{5}{2} -\frac{39}{2} = \frac{396+5-39}{2} =\frac{362}{2} =181; \frac{484}{9} *\frac{81}{22} +\frac{41}{5} *\frac{25}{82} -\frac{169}{38} *\frac{57}{13}=198+\frac{5}{2} -\frac{39}{2} = \frac{396+5-39}{2} =\frac{362}{2} =181;](https://tex.z-dn.net/?f=%5Cfrac%7B484%7D%7B9%7D%20%2A%5Cfrac%7B81%7D%7B22%7D%20%2B%5Cfrac%7B41%7D%7B5%7D%20%2A%5Cfrac%7B25%7D%7B82%7D%20-%5Cfrac%7B169%7D%7B38%7D%20%2A%5Cfrac%7B57%7D%7B13%7D%3D198%2B%5Cfrac%7B5%7D%7B2%7D%20-%5Cfrac%7B39%7D%7B2%7D%20%3D%20%5Cfrac%7B396%2B5-39%7D%7B2%7D%20%3D%5Cfrac%7B362%7D%7B2%7D%20%3D181%3B)