1) 3,12 - 1 5/6 = 78/25 - 11/6 = ( 936 - 550) / 300 = 386/300 2) 0,01 + 1/3 = 1/100 + 1/3 = ( 3 + 100) / 300 = 103/300 3) 386/300 - 103/300 = 283/300
Согласна!