(8 1/3-10 1/2)*12/65 Помогите.

[latex]= (\frac{25}{3} - \frac{21}{2} ) * \frac{12}{65} = (\frac{50}{6} - \frac{63}{6} )* \frac{12}{65} = - \frac{13}{6} * \frac{12}{65} = - \frac{2}{5} [/latex]

1)25/3-21/2=50/6-63/6=-13/6; 2)-13/6*12/65=-2/5.