[tex][( \frac{27}{32} - \frac{7}{24} - \frac{5}{36} ) : (-\frac{17}{24} ) -(- \frac{83-8}{90} )] : (-\frac{25}{100} )[/tex]=
[tex][(\frac{27*9}{288} - \frac{7*12}{288} - \frac{5*8}{288} ) * (-\frac{24}{17}) + \frac{76}{90} )]*(-4) =[/tex]
[tex][(\frac{243}{288} - \frac{84}{288} -\frac{40}{288} )*(-\frac{24}{17} ) +\frac{76}{90} ] *(-4)=[/tex]
[tex](\frac{119}{288} *\frac{-24}{17} + \frac{76}{90} ) *(-4)=[/tex]
[tex](\frac{-7}{12} + \frac{76}{90} ) * (-4) =[/tex]
[tex](\frac{-7*15}{180} + \frac{76*2}{180} ) *(-4)=[/tex]
[tex]\frac{-105+152}{180} *(-4)=[/tex]
[tex]\frac{47}{180} *(-4)=[/tex][tex]\frac{-47}{45}[/tex]
