[tex]2,7-4,2:(-0,7)+16*(-0,5)=2,7+6-8=0,7\\\\-5,31+13,5:(-0,9)-4*(0,31)=-5,31-15-1,24=-21,55\\\\\frac{1,3+0,05*2}{\frac{1}{4} -\frac{1}{2} }=\frac{1,3+0,1}{\frac{1}{4}-\frac{2}{4} }=\frac{1,4}{-\frac{1}{4} }=\frac{7}{5}*(-4)=-\frac{28}{5}\\ \\ 0,27*10=2,7\\ 0,27*100=27\\ 0,37*1000=370\\30,34:10=3,034\\31,14:100=0,3114\\30,34:1000=0,03034[/tex]
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[tex]2,7-4,2:(-0,7)+16*(-0,5)=2,7+6-8=0,7\\\\-5,31+13,5:(-0,9)-4*(0,31)=-5,31-15-1,24=-21,55\\\\\frac{1,3+0,05*2}{\frac{1}{4} -\frac{1}{2} }=\frac{1,3+0,1}{\frac{1}{4}-\frac{2}{4} }=\frac{1,4}{-\frac{1}{4} }=\frac{7}{5}*(-4)=-\frac{28}{5}\\ \\ 0,27*10=2,7\\ 0,27*100=27\\ 0,37*1000=370\\30,34:10=3,034\\31,14:100=0,3114\\30,34:1000=0,03034[/tex]