d) [tex]( \frac{1}{3} - \frac{1}{2} ):( -\frac{2}{3} * \frac{1}{2} )- \frac{1}{4} =[/tex]
[tex]( \frac{1*2}{6} - \frac{1*3}{6} ):( -\frac{2*1}{3*2})- \frac{1}{4} =[/tex]
[tex]( \frac{2}{6} - \frac{3}{6} ):( -\frac{2}{6})- \frac{1}{4} =[/tex]
[tex]( \frac{2-3}{6} ):( -\frac{2}{6})- \frac{1}{4} =[/tex]
[tex]\frac{-1}{6}:(-\frac{2}{6})- \frac{1}{4} =[/tex]
[tex] \frac{-1*6}{-2*6} - \frac{1}{4} =[/tex]
[tex] \frac{-1}{-2} - \frac{1}{4} =[/tex]
[tex] \frac{1}{2} - \frac{1}{4} =[/tex]
[tex] \frac{2}{4} - \frac{1}{4} = \frac{1}{4} [/tex]
Solución: 1/4
e) [tex]( \frac{1}{4} - \frac{1}{3} )*(- \frac{1}{3} - \frac{1}{2} )=[/tex]
[tex]( \frac{1*3}{12} - \frac{1*4}{12} )*(- \frac{1*2}{6} - \frac{1*3}{6} )=[/tex]
[tex]( \frac{3}{12} - \frac{4}{12} )*(- \frac{2}{6} - \frac{3}{6} )=[/tex]
[tex]( \frac{3-4}{12} )*(\frac{-2-3}{6})=[/tex]
[tex]( \frac{-1}{12} )*(\frac{-5}{6})=[/tex]
[tex]( \frac{-1*(-5)}{12*6} )=\frac{5}{72} [/tex]
Solución: 5/72
