Răspunsuri

2014-11-10T20:32:03+02:00
A) ( \frac{-1}{3} )*( \frac{-7}{4} ):( \frac{-15}{-3} ): (\frac{-7}{12} )=  \frac{7}{12}* \frac{1}{5}*( \frac{-12}{7} )= \frac{-84}{420}= \frac{-1}{5}
b)-\frac{3}{4}-\frac{3-2+5}{6} - \frac {7}{6}+\frac{2}{3}=\frac{-9-12-14+8}{12}=\frac{-27}{12}=\frac{-9}{4}
c)\frac{-5}{2}* \frac{2}{-5}-[-3+(\frac{-1}{14})*\frac{7}{-5}]:\frac{1}{100}=1-(\frac{-30}{10}+\frac{1}{10})*100=1-290
d) scuze, dar nu se chair intelege ce ai scris:(