а) 0 1/2+0 3/4= 0 2/4+ 0 3/4=0 5/4= 1 1/4
б)2 1/2-0 7/10= 2 5/10-0 7/10=1 15/10-0 7/10= 1 8/10= 1 4/5
в)0 2/5
а) 0 1/2+0 3/4= 0 2/4+ 0 3/4=0 5/4= 1 1/4
б)2 1/2-0 7/10= 2 5/10-0 7/10=1 15/10-0 7/10= 1 8/10= 1 4/5
в)0 2/5