Ответ Автор - IS4 5/12-y=0.15 y=5/12-0.15 |0.15=3/20y=5/12-3/20 |НОК=60y=(5*5)/(12*5)-(3*3)/(20*3)y=25/60 -9/60y=(25-9)/60=16/60=4/15