(-327,8+(-721/5))+(-539 11/15(-60/415

-472+78 14/415= -393 401/415

(-327,8+(-721/5))+(-539 11/15(-60/415)=1)..-327,8-721/5=-327,8-144,2=-4722).-539  11/15 - 60/415 =- (539  + (11*83+60*3)/1245)=-(539   (913+180)  /1245=- 539  1093/12453) -472-539  1093/1245= - 1011  1093/1245