a) 3 1/11 + 2 3/11 = 5 4/11
б) 6 5/7 + 9 1/7 = 15 6/7
в) 3 7/13 + 2 5/13 = 5 12/13
3 1/11+2 3/11=5 4/11
6 5/7 +9 1/7 =15 6/7
3 7/13 + 2 5/13 =5 12/13
a) 3 1/11 + 2 3/11 = 5 4/11
б) 6 5/7 + 9 1/7 = 15 6/7
в) 3 7/13 + 2 5/13 = 5 12/13
3 1/11+2 3/11=5 4/11
6 5/7 +9 1/7 =15 6/7
3 7/13 + 2 5/13 =5 12/13