Espressioni numeriche-Help!!

[NichtDa]

Mi aiutate per favore?Le avrò rifatte 10 volte,sempre sbagliate T_T

[f3874de6c1206fe40aa32376201566557615d103]

Ciao,
la prima espressione.
{[-3/2•(1/6-2/3)+(2/3-7/4)(2-1/2)]•4-2/3}•3-1/12+2;
{[-3/2•(1-4/6)+(8-21/12)(4-1/2)]•4-2/3}•3-1/12+2;
{[-3/2•(-3/6)+(-13/12)(3/2)]•4-2/3}•3-1/12+2;
{[-3/2•(-1/2)+(-13/8)]•4-2/3}•3-1/12+2;
{[3/4-13/8]•4-2/3}•3-1/12+2;
{[6-13/8]•4-2/3}•3-1/12+2;
{[-7/8]•4-2/3}•3-1/12+2;
{-7/2-2/3}•3-1/12+2;
{-21-4/6}•3-1/12+2;
{-25/6}•3-1/12+2;
-25/2-1/12+2;
-150-1+24/12;
-127/24

Aggiunto 11 ore 39 minuti più tardi:

seconda espressione.

[math]\frac{\left [ 4+\left ( \frac{4}{3}-\frac{1}{6} \right ):\left ( \frac{11}{18}-1 \right )-\frac{4}{5} \right ]\cdot \frac{15}{10}}{\left [ \left ( \frac{1}{7}-\frac{1}{5} \right ):\left ( \frac{2}{3}-\frac{4}{7} \right )+\frac{4}{5} \right ]\cdot \frac{15}{4}}[/math]

;

[math]\frac{\left [ 4+\left( \frac{8-1}{6} \right ):\left ( \frac{11-18}{18} \right )-\frac{4}{5} \right ]\cdot \frac{3}{2}}{\left [ \left ( \frac{5-7}{35}\right ):\left ( \frac{14-12}{21}-\frac{4}{7} \right )+\frac{4}{5} \right ]\cdot \frac{15}{4} }[/math]

;

[math]\frac{\left [ 4+\left( \frac{7}{6} \right ):\left ( \frac{-7}{18} \right )-\frac{4}{5} \right ]\cdot \frac{3}{2}
}{\left [ \left ( \frac{-2}{35}\right ):\left ( \frac{2}{21}-\frac{4}{7} \right )+\frac{4}{5} \right ]\cdot \frac{15}{4}}[/math]

[math]\frac{\left [ 4+\left(\frac{7}{6} \right ) \cdot \left ( \frac{-18}{7} \right )-\frac{4}{5} \right ]\cdot \frac{3}{2}
}{\left [ \left ( \frac{-2}{35}\right ) \cdot\left ( \frac{21}{2}-\frac{4}{7} \right )+\frac{4}{5} \right ]\cdot \frac{15}{4} } [/math]

[math]\frac{\left [ 4-3-\frac{4}{5} \right ]\cdot \frac{3}{2}
}{\left [ \frac{-3}{5}+\frac{4}{5} \right ]\cdot \frac{15}{4}
}[/math]

[math]\frac{\left [ \frac{20-15-4}{5} \right ]\cdot \frac{3}{2}
}{\left [ \frac{-3+4}{5}\right ]\cdot \frac{15}{4}
}[/math]

[math]
\frac{\left [ \frac{1}{5} \right ]\cdot \frac{3}{2}}{\left [ \frac{1}{5}\right ]\cdot \frac{15}{4}}[/math]

[math]\frac{\frac{3}{10} }{\frac{3}{4}}=[/math]

[math]\frac{3}{10}\cdot\frac{4}{3}=[/math]

[math]\frac{2}{5}[/math]

saluti :-)