А)11 2/7+4 3/7-6 4/7=
11 2/7+4 3/7=15 5/7
15 5/7-6 4/7=9 1/7
б)26 7/19-13 4/19+5 2/19=
26 7/19-13 4/19=13 3/19
13 3/19+5 2/19=18 5/19
в)44 2/9+8 5/9-7/9=
44 2/9+8 5/9=52 7/9
52 7/9-7/9=52
г)5 7/10+3 9/10+1 3/10=
5 7/10+3 9/10=8 16/10
8 16/10+1 3/10=10 9/10
д)3 17/100-2 13/100-1=
3 17/100-2 13/100=1 4/100
1 4/100-1=4/100
е)8-4 31/100-2 57/100=
8-4 31/100=3 69/100
3 69/100-2 57/100=1 12/100