а) 1. 6-7 1/8= -1 1/8
2. 2/9+2/3= 8/9
3. -1 1/8*8/9= -9/8*8/9= -1
б) 1. 4 1/7:3 5/8=29/7*8/29=8/7
2. 8 1/7-8/7=7 8/7-8/7=7
а) 1. 6-7 1/8= -1 1/8
2. 2/9+2/3= 8/9
3. -1 1/8*8/9= -9/8*8/9= -1
б) 1. 4 1/7:3 5/8=29/7*8/29=8/7
2. 8 1/7-8/7=7 8/7-8/7=7