Non mi esce

[chaty]

[(5/3)^12:(-3/5)^-10-5/3]:[-(2/3)^7:(-2/3)^6-(-2/3)^5:(-2/3)^3]=

[92kiaretta]

[math] [(\frac{5}{3})^{12}: (-\frac{3}{5})^{-10}-(\frac{5}{3})]: [-(\frac{2}{3})^{7}: (-\frac{2}{3})^{6}- (-\frac{2}{3})^{5}: (-\frac{2}{3})^{3}]= [/math]

[math] [(\frac{5}{3})^{12}: (-\frac{5}{3})^{10}-\frac{5}{3}]: [-(-\frac{2}{3})-(-\frac{2}{3})^{2}] =[/math]

[math] [(-\frac{5}{3})^{2}-\frac{5}{3}]: [\frac{2}{3}-\frac{4}{9}]= [/math]

[math] [\frac{25-15}{9}]: [\frac{6-4}{9}]= [/math]

[math]\frac{10}{9}* \frac{9}{2}=5 [/math]